/* -----------------------------------------------------------------------------
 * This file is part of SWIG, which is licensed as a whole under version 3 
 * (or any later version) of the GNU General Public License. Some additional
 * terms also apply to certain portions of SWIG. The full details of the SWIG
 * license and copyrights can be found in the LICENSE and COPYRIGHT files
 * included with the SWIG source code as distributed by the SWIG developers
 * and at http://www.swig.org/legal.html.
 *
 * python.cxx
 *
 * Python language module for SWIG.
 * ----------------------------------------------------------------------------- */

#include "swigmod.h"
#include <limits.h>
#include "cparse.h"
#include <ctype.h>
#include <errno.h>
#include <stdlib.h>

#define PYSHADOW_MEMBER  0x2
#define WARN_PYTHON_MULTIPLE_INH 405

static String *const_code = 0;
static String *module = 0;
static String *package = 0;
static String *mainmodule = 0;
static String *interface = 0;
static String *global_name = 0;
static int shadow = 1;
static int use_kw = 0;
static int director_method_index = 0;
static int builtin = 0;

static File *f_begin = 0;
static File *f_runtime = 0;
static File *f_runtime_h = 0;
static File *f_header = 0;
static File *f_wrappers = 0;
static File *f_directors = 0;
static File *f_directors_h = 0;
static File *f_init = 0;
static File *f_shadow_py = 0;
static String *f_shadow = 0;
static String *f_shadow_begin = 0;
static Hash *f_shadow_imports = 0;
static String *f_shadow_after_begin = 0;
static String *f_shadow_stubs = 0;
static Hash *builtin_getset = 0;
static Hash *builtin_closures = 0;
static Hash *class_members = 0;
static File *f_builtins = 0;
static String *builtin_tp_init = 0;
static String *builtin_methods = 0;
static String *builtin_default_unref = 0;
static String *builtin_closures_code = 0;

static String *methods;
static String *class_name;
static String *shadow_indent = 0;
static int in_class = 0;
static int classic = 0;
static int modern = 0;
static int new_repr = 1;
static int no_header_file = 0;
static int max_bases = 0;
static int builtin_bases_needed = 0;

static int py3 = 0;

/* C++ Support + Shadow Classes */

static int have_constructor;
static int have_repr;
static String *real_classname;

/* Thread Support */
static int threads = 0;
static int nothreads = 0;
static int classptr = 0;
/* Other options */
static int shadowimport = 1;
static int buildnone = 0;
static int nobuildnone = 0;
static int safecstrings = 0;
static int dirvtable = 0;
static int proxydel = 1;
static int fastunpack = 0;
static int fastproxy = 0;
static int fastquery = 0;
static int fastinit = 0;
static int olddefs = 0;
static int modernargs = 0;
static int aliasobj0 = 0;
static int castmode = 0;
static int extranative = 0;
static int outputtuple = 0;
static int nortti = 0;
static int relativeimport = 0;

/* flags for the make_autodoc function */
enum autodoc_t {
  AUTODOC_CLASS,
  AUTODOC_CTOR,
  AUTODOC_DTOR,
  AUTODOC_STATICFUNC,
  AUTODOC_FUNC,
  AUTODOC_METHOD
};


static const char *usage1 = "\
Python Options (available with -python)\n\
     -aliasobj0      - Alias obj0 when using fastunpack, needed for some old typemaps \n\
     -buildnone      - Use Py_BuildValue(" ") to obtain Py_None (default in Windows)\n\
     -builtin        - Create new python built-in types, rather than proxy classes, for better performance\n\
     -castmode       - Enable the casting mode, which allows implicit cast between types in python\n\
     -classic        - Use classic classes only\n\
     -classptr       - Generate shadow 'ClassPtr' as in older swig versions\n\
     -cppcast        - Enable C++ casting operators (default) \n\
     -dirvtable      - Generate a pseudo virtual table for directors for faster dispatch \n\
     -extranative    - Return extra native C++ wraps for std containers when possible \n\
     -fastinit       - Use fast init mechanism for classes (default)\n\
     -fastunpack     - Use fast unpack mechanism to parse the argument functions \n\
     -fastproxy      - Use fast proxy mechanism for member methods \n\
     -fastquery      - Use fast query mechanism for types \n\
     -globals <name> - Set <name> used to access C global variable [default: 'cvar']\n\
     -interface <lib>- Set the lib name to <lib>\n\
     -keyword        - Use keyword arguments\n\
     -modern         - Use modern python features only, without compatibility code\n\
     -modernargs     - Use \"modern\" args mechanism to pack/unpack the function arguments\n";
static const char *usage2 = "\
     -newrepr        - Use more informative version of __repr__ in proxy classes (default) \n\
     -newvwm         - New value wrapper mode, use only when everything else fails \n\
     -noaliasobj0    - Don't generate an obj0 alias when using fastunpack (default) \n\
     -nobuildnone    - Access Py_None directly (default in non-Windows systems)\n\
     -nocastmode     - Disable the casting mode (default)\n\
     -nocppcast      - Disable C++ casting operators, useful for generating bugs\n\
     -nodirvtable    - Don't use the virtual table feature, resolve the python method each time (default)\n\
     -noexcept       - No automatic exception handling\n\
     -noextranative  - Don't use extra native C++ wraps for std containers when possible (default) \n\
     -nofastinit     - Use traditional init mechanism for classes \n\
     -nofastunpack   - Use traditional UnpackTuple method to parse the argument functions (default) \n\
     -nofastproxy    - Use traditional proxy mechanism for member methods (default) \n\
     -nofastquery    - Use traditional query mechanism for types (default) \n\
     -noh            - Don't generate the output header file\n\
     -nomodern       - Don't use modern python features which are not backwards compatible \n\
     -nomodernargs   - Use classic ParseTuple/CallFunction methods to pack/unpack the function arguments (default) \n";
static const char *usage3 = "\
     -noolddefs      - Don't emit the old method definitions even when using fastproxy (default) \n\
     -nooutputtuple  - Use a PyList for appending output values (default) \n\
     -noproxy        - Don't generate proxy classes \n\
     -noproxydel     - Don't generate the redundant __del__ method \n\
     -noproxyimport  - Don't insert proxy import statements derived from the %import directive \n\
     -nortti         - Disable the use of the native C++ RTTI with directors\n\
     -nosafecstrings - Avoid extra strings copies when possible (default)\n\
     -nothreads      - Disable thread support for the entire interface\n\
     -olddefs        - Keep the old method definitions even when using fastproxy\n\
     -oldrepr        - Use shorter and old version of __repr__ in proxy classes\n\
     -outputtuple    - Use a PyTuple for outputs instead of a PyList (use carefully with legacy interfaces) \n\
     -proxydel       - Generate a __del__ method even though it is now redundant (default) \n\
     -relativeimport - Use relative python imports \n\
     -safecstrings   - Use safer (but slower) C string mapping, generating copies from Python -> C/C++\n\
     -threads        - Add thread support for all the interface\n\
     -O              - Enable the following optimization options: \n\
                         -modern -fastdispatch -nosafecstrings -fvirtual -noproxydel \n\
                         -fastproxy -fastinit -fastunpack -fastquery -modernargs -nobuildnone \n\
     -py3            - Generate code with Python 3 specific features:\n\
                         Function annotation \n\
\n";

static String *getSlot(Node *n = NULL, const char *key = NULL, String *default_slot = NULL) {
  static String *zero = NewString("0");
  String *val = n && key && *key ? Getattr(n, key) : NULL;
  return val ? val : default_slot ? default_slot : zero;
}

static void printSlot(File *f, String *slotval, const char *slotname, const char *functype = NULL) {
  String *slotval_override = 0;
  if (functype)
    slotval = slotval_override = NewStringf("(%s) %s", functype, slotval);
  int len = Len(slotval);
  int fieldwidth = len > 41 ? (len > 61 ? 0 : 61 - len) : 41 - len;
  Printf(f, "    %s,%*s/* %s */\n", slotval, fieldwidth, "", slotname);
  Delete(slotval_override);
}

static String *getClosure(String *functype, String *wrapper, int funpack = 0) {
  static const char *functypes[] = {
    "unaryfunc", "SWIGPY_UNARYFUNC_CLOSURE",
    "destructor", "SWIGPY_DESTRUCTOR_CLOSURE",
    "inquiry", "SWIGPY_INQUIRY_CLOSURE",
    "getiterfunc", "SWIGPY_GETITERFUNC_CLOSURE",
    "binaryfunc", "SWIGPY_BINARYFUNC_CLOSURE",
    "ternaryfunc", "SWIGPY_TERNARYFUNC_CLOSURE",
    "ternarycallfunc", "SWIGPY_TERNARYCALLFUNC_CLOSURE",
    "lenfunc", "SWIGPY_LENFUNC_CLOSURE",
    "ssizeargfunc", "SWIGPY_SSIZEARGFUNC_CLOSURE",
    "ssizessizeargfunc", "SWIGPY_SSIZESSIZEARGFUNC_CLOSURE",
    "ssizeobjargproc", "SWIGPY_SSIZEOBJARGPROC_CLOSURE",
    "ssizessizeobjargproc", "SWIGPY_SSIZESSIZEOBJARGPROC_CLOSURE",
    "objobjargproc", "SWIGPY_OBJOBJARGPROC_CLOSURE",
    "reprfunc", "SWIGPY_REPRFUNC_CLOSURE",
    "hashfunc", "SWIGPY_HASHFUNC_CLOSURE",
    "iternextfunc", "SWIGPY_ITERNEXTFUNC_CLOSURE",
    NULL
  };

  static const char *funpack_functypes[] = {
    "unaryfunc", "SWIGPY_UNARYFUNC_CLOSURE",
    "destructor", "SWIGPY_DESTRUCTOR_CLOSURE",
    "inquiry", "SWIGPY_INQUIRY_CLOSURE",
    "getiterfunc", "SWIGPY_GETITERFUNC_CLOSURE",
    "ternaryfunc", "SWIGPY_TERNARYFUNC_CLOSURE",
    "ternarycallfunc", "SWIGPY_TERNARYCALLFUNC_CLOSURE",
    "lenfunc", "SWIGPY_LENFUNC_CLOSURE",
    "ssizeargfunc", "SWIGPY_FUNPACK_SSIZEARGFUNC_CLOSURE",
    "ssizessizeargfunc", "SWIGPY_SSIZESSIZEARGFUNC_CLOSURE",
    "ssizeobjargproc", "SWIGPY_SSIZEOBJARGPROC_CLOSURE",
    "ssizessizeobjargproc", "SWIGPY_SSIZESSIZEOBJARGPROC_CLOSURE",
    "objobjargproc", "SWIGPY_OBJOBJARGPROC_CLOSURE",
    "reprfunc", "SWIGPY_REPRFUNC_CLOSURE",
    "hashfunc", "SWIGPY_HASHFUNC_CLOSURE",
    "iternextfunc", "SWIGPY_ITERNEXTFUNC_CLOSURE",
    NULL
  };

  if (!functype)
    return NULL;
  char *c = Char(functype);
  int i;
  if (funpack) {
    for (i = 0; funpack_functypes[i] != NULL; i += 2) {
      if (!strcmp(c, funpack_functypes[i]))
	return NewStringf("%s(%s)", funpack_functypes[i + 1], wrapper);
    }
  } else {
    for (i = 0; functypes[i] != NULL; i += 2) {
      if (!strcmp(c, functypes[i]))
	return NewStringf("%s(%s)", functypes[i + 1], wrapper);
    }
  }
  return NULL;
}

class PYTHON:public Language {
public:
  PYTHON() {
    /* Add code to manage protected constructors and directors */
    director_prot_ctor_code = NewString("");
    Printv(director_prot_ctor_code,
	   "if ( $comparison ) { /* subclassed */\n",
	   "  $director_new \n",
	   "} else {\n", "  SWIG_SetErrorMsg(PyExc_RuntimeError,\"accessing abstract class or protected constructor\"); \n", "  SWIG_fail;\n", "}\n", NIL);
    director_multiple_inheritance = 1;
    director_language = 1;
  }
  /* ------------------------------------------------------------
   * Thread Implementation
   * ------------------------------------------------------------ */
  int threads_enable(Node *n) const {
    return threads && !GetFlagAttr(n, "feature:nothread");
  }

  int initialize_threads(String *f_init) {
    if (!threads) {
      return SWIG_OK;
    }
    Printf(f_init, "\n");
    Printf(f_init, "/* Initialize threading */\n");
    Printf(f_init, "SWIG_PYTHON_INITIALIZE_THREADS;\n");

    return SWIG_OK;
  }

  virtual void thread_begin_block(Node *n, String *f) {
    if (!GetFlag(n, "feature:nothreadblock")) {
      String *bb = Getattr(n, "feature:threadbeginblock");
      if (bb) {
	Append(f, bb);
      } else {
	Append(f, "SWIG_PYTHON_THREAD_BEGIN_BLOCK;\n");
      }
    }
  }

  virtual void thread_end_block(Node *n, String *f) {
    if (!GetFlag(n, "feature:nothreadblock")) {
      String *eb = Getattr(n, "feature:threadendblock");
      if (eb) {
	Append(f, eb);
      } else {
	Append(f, "SWIG_PYTHON_THREAD_END_BLOCK;\n");
      }
    }
  }

  virtual void thread_begin_allow(Node *n, String *f) {
    if (!GetFlag(n, "feature:nothreadallow")) {
      String *bb = Getattr(n, "feature:threadbeginallow");
      Append(f, "{\n");
      if (bb) {
	Append(f, bb);
      } else {
	Append(f, "SWIG_PYTHON_THREAD_BEGIN_ALLOW;\n");
      }
    }
  }

  virtual void thread_end_allow(Node *n, String *f) {
    if (!GetFlag(n, "feature:nothreadallow")) {
      String *eb = Getattr(n, "feature:threadendallow");
      Append(f, "\n");
      if (eb) {
	Append(f, eb);
      } else {
	Append(f, "SWIG_PYTHON_THREAD_END_ALLOW;");
      }
      Append(f, "\n}");
    }
  }


  /* ------------------------------------------------------------
   * main()
   * ------------------------------------------------------------ */

  virtual void main(int argc, char *argv[]) {
    int cppcast = 1;

    SWIG_library_directory("python");

    for (int i = 1; i < argc; i++) {
      if (argv[i]) {
	if (strcmp(argv[i], "-interface") == 0) {
	  if (argv[i + 1]) {
	    interface = NewString(argv[i + 1]);
	    Swig_mark_arg(i);
	    Swig_mark_arg(i + 1);
	    i++;
	  } else {
	    Swig_arg_error();
	  }
	  /* end added */
	} else if (strcmp(argv[i], "-globals") == 0) {
	  if (argv[i + 1]) {
	    global_name = NewString(argv[i + 1]);
	    Swig_mark_arg(i);
	    Swig_mark_arg(i + 1);
	    i++;
	  } else {
	    Swig_arg_error();
	  }
	} else if ((strcmp(argv[i], "-shadow") == 0) || ((strcmp(argv[i], "-proxy") == 0))) {
	  shadow = 1;
	  Swig_mark_arg(i);
	} else if ((strcmp(argv[i], "-new_repr") == 0) || (strcmp(argv[i], "-newrepr") == 0)) {
	  new_repr = 1;
	  Swig_mark_arg(i);
	} else if ((strcmp(argv[i], "-old_repr") == 0) || (strcmp(argv[i], "-oldrepr") == 0)) {
	  new_repr = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-classptr") == 0) {
	  classptr = 1;
	  Swig_mark_arg(i);
	} else if ((strcmp(argv[i], "-noproxy") == 0)) {
	  shadow = 0;
	  Swig_mark_arg(i);
	} else if ((strcmp(argv[i], "-noproxyimport") == 0)) {
	  shadowimport = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-keyword") == 0) {
	  use_kw = 1;
	  SWIG_cparse_set_compact_default_args(1);
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-classic") == 0) {
	  classic = 1;
	  modernargs = 0;
	  modern = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-cppcast") == 0) {
	  cppcast = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nocppcast") == 0) {
	  cppcast = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-outputtuple") == 0) {
	  outputtuple = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nooutputtuple") == 0) {
	  outputtuple = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nortti") == 0) {
	  nortti = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-threads") == 0) {
	  threads = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nothreads") == 0) {
	  /* Turn off thread suppor mode */
	  nothreads = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-safecstrings") == 0) {
	  safecstrings = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nosafecstrings") == 0) {
	  safecstrings = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-buildnone") == 0) {
	  buildnone = 1;
	  nobuildnone = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nobuildnone") == 0) {
	  buildnone = 0;
	  nobuildnone = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-dirvtable") == 0) {
	  dirvtable = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nodirvtable") == 0) {
	  dirvtable = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-fastunpack") == 0) {
	  fastunpack = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nofastunpack") == 0) {
	  fastunpack = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-fastproxy") == 0) {
	  fastproxy = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nofastproxy") == 0) {
	  fastproxy = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-fastquery") == 0) {
	  fastquery = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nofastquery") == 0) {
	  fastquery = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-fastinit") == 0) {
	  fastinit = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nofastinit") == 0) {
	  fastinit = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-olddefs") == 0) {
	  olddefs = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-noolddefs") == 0) {
	  olddefs = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-castmode") == 0) {
	  castmode = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nocastmode") == 0) {
	  castmode = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-extranative") == 0) {
	  extranative = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-noextranative") == 0) {
	  extranative = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-modernargs") == 0) {
	  modernargs = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nomodernargs") == 0) {
	  modernargs = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-aliasobj0") == 0) {
	  aliasobj0 = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-noaliasobj0") == 0) {
	  aliasobj0 = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-proxydel") == 0) {
	  proxydel = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-noproxydel") == 0) {
	  proxydel = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-modern") == 0) {
	  classic = 0;
	  modern = 1;
	  modernargs = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-nomodern") == 0) {
	  modern = 0;
	  modernargs = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-noh") == 0) {
	  no_header_file = 1;
	  Swig_mark_arg(i);
	} else if ((strcmp(argv[i], "-new_vwm") == 0) || (strcmp(argv[i], "-newvwm") == 0)) {
	  /* Turn on new value wrapper mpde */
	  Swig_value_wrapper_mode(1);
	  no_header_file = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-O") == 0) {
	  classic = 0;
	  modern = 1;
	  safecstrings = 0;
	  buildnone = 0;
	  nobuildnone = 1;
	  classptr = 0;
	  proxydel = 0;
	  fastunpack = 1;
	  fastproxy = 1;
	  fastinit = 1;
	  fastquery = 1;
	  modernargs = 1;
	  Wrapper_fast_dispatch_mode_set(1);
	  Wrapper_virtual_elimination_mode_set(1);
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-help") == 0) {
	  fputs(usage1, stdout);
	  fputs(usage2, stdout);
	  fputs(usage3, stdout);
	} else if (strcmp(argv[i], "-py3") == 0) {
	  py3 = 1;
	  Preprocessor_define("SWIGPYTHON_PY3", 0);
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-builtin") == 0) {
	  builtin = 1;
	  Preprocessor_define("SWIGPYTHON_BUILTIN", 0);
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i], "-relativeimport") == 0) {
	  relativeimport = 1;
	  Swig_mark_arg(i);
	}

      }
    }

    if (py3) {
      /* force disable features that not compatible with Python 3.x */
      classic = 0;
    }

    if (cppcast) {
      Preprocessor_define((DOH *) "SWIG_CPLUSPLUS_CAST", 0);
    }

    if (!global_name)
      global_name = NewString("cvar");
    Preprocessor_define("SWIGPYTHON 1", 0);
    SWIG_typemap_lang("python");
    SWIG_config_file("python.swg");
    allow_overloading();
  }


  /* ------------------------------------------------------------
   * top()
   * ------------------------------------------------------------ */

  virtual int top(Node *n) {
    /* check if directors are enabled for this module.  note: this 
     * is a "master" switch, without which no director code will be
     * emitted.  %feature("director") statements are also required
     * to enable directors for individual classes or methods.
     *
     * use %module(directors="1") modulename at the start of the 
     * interface file to enable director generation.
     */
    String *mod_docstring = NULL;
    String *moduleimport = NULL;
    {
      Node *mod = Getattr(n, "module");
      if (mod) {
	Node *options = Getattr(mod, "options");
	if (options) {
	  int dirprot = 0;
	  if (Getattr(options, "dirprot")) {
	    dirprot = 1;
	  }
	  if (Getattr(options, "nodirprot")) {
	    dirprot = 0;
	  }
	  if (Getattr(options, "directors")) {
	    allow_directors();
	    if (dirprot)
	      allow_dirprot();
	  }
	  if (Getattr(options, "threads")) {
	    threads = 1;
	  }
	  if (Getattr(options, "castmode")) {
	    castmode = 1;
	  }
	  if (Getattr(options, "nocastmode")) {
	    castmode = 0;
	  }
	  if (Getattr(options, "extranative")) {
	    extranative = 1;
	  }
	  if (Getattr(options, "noextranative")) {
	    extranative = 0;
	  }
	  if (Getattr(options, "outputtuple")) {
	    outputtuple = 1;
	  }
	  if (Getattr(options, "nooutputtuple")) {
	    outputtuple = 0;
	  }
	  mod_docstring = Getattr(options, "docstring");
	  package = Getattr(options, "package");
	  moduleimport = Getattr(options, "moduleimport");
	}
      }
    }

    /* Set comparison with none for ConstructorToFunction */
    setSubclassInstanceCheck(NewString("$arg != Py_None"));

    /* Initialize all of the output files */
    String *outfile = Getattr(n, "outfile");
    String *outfile_h = !no_header_file ? Getattr(n, "outfile_h") : 0;

    f_begin = NewFile(outfile, "w", SWIG_output_files());
    if (!f_begin) {
      FileErrorDisplay(outfile);
      SWIG_exit(EXIT_FAILURE);
    }
    f_runtime = NewString("");
    f_init = NewString("");
    f_header = NewString("");
    f_wrappers = NewString("");
    f_directors_h = NewString("");
    f_directors = NewString("");
    builtin_getset = NewHash();
    builtin_closures = NewHash();
    builtin_closures_code = NewString("");
    class_members = NewHash();
    builtin_methods = NewString("");
    builtin_default_unref = NewString("delete $self;");

    if (builtin) {
      f_builtins = NewString("");
    }

    if (directorsEnabled()) {
      if (!no_header_file) {
	f_runtime_h = NewFile(outfile_h, "w", SWIG_output_files());
	if (!f_runtime_h) {
	  FileErrorDisplay(outfile_h);
	  SWIG_exit(EXIT_FAILURE);
	}
      } else {
	f_runtime_h = f_runtime;
      }
    }

    /* Register file targets with the SWIG file handler */
    Swig_register_filebyname("header", f_header);
    Swig_register_filebyname("wrapper", f_wrappers);
    Swig_register_filebyname("begin", f_begin);
    Swig_register_filebyname("runtime", f_runtime);
    Swig_register_filebyname("init", f_init);
    Swig_register_filebyname("director", f_directors);
    Swig_register_filebyname("director_h", f_directors_h);

    const_code = NewString("");
    methods = NewString("");

    Swig_banner(f_begin);

    Printf(f_runtime, "\n\n#ifndef SWIGPYTHON\n#define SWIGPYTHON\n#endif\n\n");

    if (directorsEnabled()) {
      Printf(f_runtime, "#define SWIG_DIRECTORS\n");
    }

    if (nothreads) {
      Printf(f_runtime, "#define SWIG_PYTHON_NO_THREADS\n");
    } else if (threads) {
      Printf(f_runtime, "#define SWIG_PYTHON_THREADS\n");
    }

    if (safecstrings) {
      Printf(f_runtime, "#define SWIG_PYTHON_SAFE_CSTRINGS\n");
    }

    if (buildnone) {
      Printf(f_runtime, "#define SWIG_PYTHON_BUILD_NONE\n");
    }

    if (nobuildnone) {
      Printf(f_runtime, "#define SWIG_PYTHON_NO_BUILD_NONE\n");
    }

    if (!dirvtable) {
      Printf(f_runtime, "#define SWIG_PYTHON_DIRECTOR_NO_VTABLE\n");
    }

    if (outputtuple) {
      Printf(f_runtime, "#define SWIG_PYTHON_OUTPUT_TUPLE\n");
    }

    if (nortti) {
      Printf(f_runtime, "#ifndef SWIG_DIRECTOR_NORTTI\n");
      Printf(f_runtime, "#define SWIG_DIRECTOR_NORTTI\n");
      Printf(f_runtime, "#endif\n");
    }

    if (castmode) {
      Printf(f_runtime, "#define SWIG_CASTRANK_MODE\n");
      Printf(f_runtime, "#define SWIG_PYTHON_CAST_MODE\n");
    }

    if (extranative) {
      Printf(f_runtime, "#define SWIG_PYTHON_EXTRA_NATIVE_CONTAINERS\n");
    }

    if (classic) {
      Printf(f_runtime, "#define SWIG_PYTHON_CLASSIC\n");
    }

    if (builtin) {
      Printf(f_runtime, "#define SWIGPYTHON_BUILTIN\n");
    }

    Printf(f_runtime, "\n");

    Printf(f_header, "#if (PY_VERSION_HEX <= 0x02000000)\n");
    Printf(f_header, "# if !defined(SWIG_PYTHON_CLASSIC)\n");
    Printf(f_header, "#  error \"This python version requires swig to be run with the '-classic' option\"\n");
    Printf(f_header, "# endif\n");
    Printf(f_header, "#endif\n");

    if (modern) {
      Printf(f_header, "#if (PY_VERSION_HEX <= 0x02020000)\n");
      Printf(f_header, "# error \"This python version requires swig to be run with the '-nomodern' option\"\n");
      Printf(f_header, "#endif\n");
    }

    if (modernargs) {
      Printf(f_header, "#if (PY_VERSION_HEX <= 0x02020000)\n");
      Printf(f_header, "# error \"This python version requires swig to be run with the '-nomodernargs' option\"\n");
      Printf(f_header, "#endif\n");
    }

    if (fastunpack) {
      Printf(f_header, "#ifndef METH_O\n");
      Printf(f_header, "# error \"This python version requires swig to be run with the '-nofastunpack' option\"\n");
      Printf(f_header, "#endif\n");
    }

    if (fastquery) {
      Printf(f_header, "#ifdef SWIG_TypeQuery\n");
      Printf(f_header, "# undef SWIG_TypeQuery\n");
      Printf(f_header, "#endif\n");
      Printf(f_header, "#define SWIG_TypeQuery SWIG_Python_TypeQuery\n");
    }


    /* Set module name */
    module = Copy(Getattr(n, "name"));
    mainmodule = Getattr(n, "name");

    if (directorsEnabled()) {
      Swig_banner(f_directors_h);
      Printf(f_directors_h, "\n");
      Printf(f_directors_h, "#ifndef SWIG_%s_WRAP_H_\n", module);
      Printf(f_directors_h, "#define SWIG_%s_WRAP_H_\n\n", module);
      if (dirprot_mode()) {
	Printf(f_directors_h, "#include <map>\n");
	Printf(f_directors_h, "#include <string>\n\n");
      }

      Printf(f_directors, "\n\n");
      Printf(f_directors, "/* ---------------------------------------------------\n");
      Printf(f_directors, " * C++ director class methods\n");
      Printf(f_directors, " * --------------------------------------------------- */\n\n");
      if (outfile_h) {
	String *filename = Swig_file_filename(outfile_h);
	Printf(f_directors, "#include \"%s\"\n\n", filename);
	Delete(filename);
      }
    }

    /* If shadow classing is enabled, we're going to change the module name to "_module" */
    String *default_import_code = NewString("");
    if (shadow) {
      String *filen = NewStringf("%s%s.py", SWIG_output_directory(), Char(module));
      // If we don't have an interface then change the module name X to _X
      if (interface)
	module = interface;
      else
	Insert(module, 0, "_");
      if ((f_shadow_py = NewFile(filen, "w", SWIG_output_files())) == 0) {
	FileErrorDisplay(filen);
	SWIG_exit(EXIT_FAILURE);
      }
      Delete(filen);
      filen = NULL;

      f_shadow = NewString("");
      f_shadow_begin = NewString("");
      f_shadow_imports = NewHash();
      f_shadow_after_begin = NewString("");
      f_shadow_stubs = NewString("");

      Swig_register_filebyname("shadow", f_shadow);
      Swig_register_filebyname("python", f_shadow);

      if (mod_docstring) {
	if (Len(mod_docstring)) {
	  const char *triple_double = "\"\"\"";
	  // follow PEP257 rules: https://www.python.org/dev/peps/pep-0257/
	  // reported by pep257: https://github.com/GreenSteam/pep257
	  bool multi_line_ds = Strchr(mod_docstring, '\n') != 0;
	  Printv(f_shadow_after_begin, "\n", triple_double, multi_line_ds ? "\n":"", mod_docstring, multi_line_ds ? "\n":"", triple_double, "\n", NIL);
	}
	Delete(mod_docstring);
	mod_docstring = NULL;
      }

      Printv(default_import_code, "\nfrom sys import version_info as _swig_python_version_info\n", NULL);

      if (!builtin && fastproxy) {
	Printv(default_import_code, "if _swig_python_version_info >= (3, 0, 0):\n", NULL);
	Printf(default_import_code, tab4 "new_instancemethod = lambda func, inst, cls: %s.SWIG_PyInstanceMethod_New(func)\n", module);
	Printv(default_import_code, "else:\n", NULL);
	Printv(default_import_code, tab4, "from new import instancemethod as new_instancemethod\n", NULL);
      }

      /* Import the C-extension module.  This should be a relative import,
       * since the shadow module may also have been imported by a relative
       * import, and there is thus no guarantee that the C-extension is on
       * sys.path.  Relative imports must be explicitly specified from 2.6.0
       * onwards (implicit relative imports will raise a DeprecationWarning
       * in 2.6, and fail in 2.7 onwards), but the relative import syntax
       * isn't available in python 2.4 or earlier, so we have to write some
       * code conditional on the python version.
       *
       * For python 2.7.0 and newer, first determine the shadow wrappers package
       * based on the __name__ it was given by the importer that loaded it.
       * Then construct a name for the module based on the package name and the
       * module name (we know the module name).  Use importlib to try and load 
       * it.  If an attempt to load the module with importlib fails with an
       * ImportError then fallback and try and load just the module name from
       * the global namespace.
       */
      Printv(default_import_code, "if _swig_python_version_info >= (2, 7, 0):\n", NULL);
      Printv(default_import_code, tab4, "def swig_import_helper():\n", NULL);
      Printv(default_import_code, tab8, "import importlib\n", NULL);
      Printv(default_import_code, tab8, "pkg = __name__.rpartition('.')[0]\n", NULL);
      Printf(default_import_code, tab8 "mname = '.'.join((pkg, '%s')).lstrip('.')\n", module);
      Printv(default_import_code, tab8, "try:\n", NULL);
      Printv(default_import_code, tab8, tab4, "return importlib.import_module(mname)\n", NULL);
      Printv(default_import_code, tab8, "except ImportError:\n", NULL);
      Printf(default_import_code, tab8 tab4 "return importlib.import_module('%s')\n", module);
      Printf(default_import_code, tab4 "%s = swig_import_helper()\n", module);
      Printv(default_import_code, tab4, "del swig_import_helper\n", NULL);
      Printv(default_import_code, "elif _swig_python_version_info >= (2, 6, 0):\n", NULL);
      Printv(default_import_code, tab4, "def swig_import_helper():\n", NULL);
      Printv(default_import_code, tab8, "from os.path import dirname\n", NULL);
      Printv(default_import_code, tab8, "import imp\n", NULL);
      Printv(default_import_code, tab8, "fp = None\n", NULL);
      Printv(default_import_code, tab8, "try:\n", NULL);
      Printf(default_import_code, tab4 tab8 "fp, pathname, description = imp.find_module('%s', [dirname(__file__)])\n", module);
      Printf(default_import_code, tab8 "except ImportError:\n");
      /* At here, the module may already loaded, so simply import it. */
      Printf(default_import_code, tab4 tab8 "import %s\n", module);
      Printf(default_import_code, tab4 tab8 "return %s\n", module);
      Printv(default_import_code, tab8 "try:\n", NULL);
      /* imp.load_module() handles fp being None. */
      Printf(default_import_code, tab4 tab8 "_mod = imp.load_module('%s', fp, pathname, description)\n", module);
      Printv(default_import_code, tab8, "finally:\n", NULL);
      Printv(default_import_code, tab4 tab8 "if fp is not None:\n", NULL);
      Printv(default_import_code, tab8 tab8, "fp.close()\n", NULL);
      Printv(default_import_code, tab8, "return _mod\n", NULL);
      Printf(default_import_code, tab4 "%s = swig_import_helper()\n", module);
      Printv(default_import_code, tab4, "del swig_import_helper\n", NULL);
      Printv(default_import_code, "else:\n", NULL);
      Printf(default_import_code, tab4 "import %s\n", module);

      if (builtin) {
        /*
         * Pull in all the attributes from the C module.
         *
         * An alternative approach to doing this if/else chain was
         * proposed by Michael Thon.  Someone braver than I may try it out.
         * I fear some current swig user may depend on some side effect
         * of from _foo import *
         *
         * for attr in _foo.__all__:
         *     globals()[attr] = getattr(_foo, attr)
         * 
         */
        Printf(default_import_code, "# pull in all the attributes from %s\n", module);
        Printv(default_import_code, "if __name__.rpartition('.')[0] != '':\n", NULL);
        Printv(default_import_code, tab4, "if _swig_python_version_info >= (2, 7, 0):\n", NULL);
        Printv(default_import_code, tab8, "try:\n", NULL);
        Printf(default_import_code, tab8 tab4 "from .%s import *\n", module);
        Printv(default_import_code, tab8 "except ImportError:\n", NULL);
        Printf(default_import_code, tab8 tab4 "from %s import *\n", module);
        Printv(default_import_code, tab4, "else:\n", NULL);
        Printf(default_import_code, tab8 "from %s import *\n", module);
        Printv(default_import_code, "else:\n", NULL);
        Printf(default_import_code, tab4 "from %s import *\n", module);
      }

      /* Delete the _swig_python_version_info symbol since we don't use it elsewhere in the
       * module. */
      Printv(default_import_code, "del _swig_python_version_info\n\n", NULL);

      if (modern || !classic) {
	Printv(f_shadow, "try:\n", tab4, "_swig_property = property\n", "except NameError:\n", tab4, "pass  # Python < 2.2 doesn't have 'property'.\n\n", NULL);
      }

      /* Need builtins to qualify names like Exception that might also be
         defined in this module (try both Python 3 and Python 2 names) */
      Printv(f_shadow, "try:\n", tab4, "import builtins as __builtin__\n", "except ImportError:\n", tab4, "import __builtin__\n", NULL);

      /* if (!modern) */
      /* always needed, a class can be forced to be no-modern, such as an exception */
      {
	// Python-2.2 object hack
	Printv(f_shadow,
	       "\n", "def _swig_setattr_nondynamic(self, class_type, name, value, static=1):\n",
	       tab4, "if (name == \"thisown\"):\n", tab8, "return self.this.own(value)\n",
	       tab4, "if (name == \"this\"):\n", tab8, "if type(value).__name__ == 'SwigPyObject':\n", tab4, tab8, "self.__dict__[name] = value\n",
#ifdef USE_THISOWN
	       tab4, tab8, "if hasattr(value,\"thisown\"):\n", tab8, tab8, "self.__dict__[\"thisown\"] = value.thisown\n", tab4, tab8, "del value.thisown\n",
#endif
	       tab4, tab8, "return\n", tab4, "method = class_type.__swig_setmethods__.get(name, None)\n", tab4, "if method:\n", tab4, tab4, "return method(self, value)\n",
#ifdef USE_THISOWN
	       tab4, "if (not static) or (name == \"thisown\"):\n",
#else
	       tab4, "if (not static):\n",
#endif
	       NIL);
	if (!classic) {
	  if (!modern)
	    Printv(f_shadow, tab4, tab4, "if _newclass:\n", tab4, NIL);
	  Printv(f_shadow, tab4, tab4, "object.__setattr__(self, name, value)\n", NIL);
	  if (!modern)
	    Printv(f_shadow, tab4, tab4, "else:\n", tab4, NIL);
	}
	if (classic || !modern)
	  Printv(f_shadow, tab4, tab4, "self.__dict__[name] = value\n", NIL);
	Printv(f_shadow,
	       tab4, "else:\n",
	       tab4, tab4, "raise AttributeError(\"You cannot add attributes to %s\" % self)\n\n",
	        "\n", "def _swig_setattr(self, class_type, name, value):\n", tab4, "return _swig_setattr_nondynamic(self, class_type, name, value, 0)\n\n", NIL);

	Printv(f_shadow,
	       "\n", "def _swig_getattr(self, class_type, name):\n",
	       tab4, "if (name == \"thisown\"):\n", tab8, "return self.this.own()\n",
	       tab4, "method = class_type.__swig_getmethods__.get(name, None)\n",
	       tab4, "if method:\n", tab8, "return method(self)\n",
	       tab4, "raise AttributeError(\"'%s' object has no attribute '%s'\" % (class_type.__name__, name))\n\n", NIL);

	Printv(f_shadow,
	        "\n", "def _swig_repr(self):\n",
	       tab4, "try:\n", tab8, "strthis = \"proxy of \" + self.this.__repr__()\n",
	       tab4, "except __builtin__.Exception:\n", tab8, "strthis = \"\"\n", tab4, "return \"<%s.%s; %s >\" % (self.__class__.__module__, self.__class__.__name__, strthis,)\n\n", NIL);

	if (!classic && !modern) {
	  Printv(f_shadow,
		 "try:\n",
		 tab4, "_object = object\n", tab4, "_newclass = 1\n",
		 "except __builtin__.Exception:\n",
		 tab4, "class _object:\n", tab8, "pass\n", tab4, "_newclass = 0\n\n", NIL);
	}
      }
      if (modern) {
	Printv(f_shadow,  "\n", "def _swig_setattr_nondynamic_method(set):\n", tab4, "def set_attr(self, name, value):\n",
#ifdef USE_THISOWN
	       tab4, tab4, "if hasattr(self, name) or (name in (\"this\", \"thisown\")):\n",
#else
	       tab4, tab4, "if (name == \"thisown\"):\n", tab8, tab4, "return self.this.own(value)\n", tab4, tab4, "if hasattr(self, name) or (name == \"this\"):\n",
#endif
	       tab4, tab4, tab4, "set(self, name, value)\n",
	       tab4, tab4, "else:\n",
	       tab4, tab4, tab4, "raise AttributeError(\"You cannot add attributes to %s\" % self)\n", tab4, "return set_attr\n\n\n", NIL);
      }

      if (directorsEnabled()) {
	// Try loading weakref.proxy, which is only available in Python 2.1 and higher
	Printv(f_shadow,
	       "try:\n", tab4, "import weakref\n", tab4, "weakref_proxy = weakref.proxy\n", "except __builtin__.Exception:\n", tab4, "weakref_proxy = lambda x: x\n", "\n\n", NIL);
      }
    }
    // Include some information in the code
    Printf(f_header, "\n/*-----------------------------------------------\n              @(target):= %s.so\n\
  ------------------------------------------------*/\n", module);

    Printf(f_header, "#if PY_VERSION_HEX >= 0x03000000\n");
    Printf(f_header, "#  define SWIG_init    PyInit_%s\n\n", module);
    Printf(f_header, "#else\n");
    Printf(f_header, "#  define SWIG_init    init%s\n\n", module);
    Printf(f_header, "#endif\n");
    Printf(f_header, "#define SWIG_name    \"%s\"\n", module);

    Printf(f_wrappers, "#ifdef __cplusplus\n");
    Printf(f_wrappers, "extern \"C\" {\n");
    Printf(f_wrappers, "#endif\n");
    Append(const_code, "static swig_const_info swig_const_table[] = {\n");
    Append(methods, "static PyMethodDef SwigMethods[] = {\n");

    /* the method exported for replacement of new.instancemethod in Python 3 */
    add_pyinstancemethod_new();

    if (builtin) {
      SwigType *s = NewString("SwigPyObject");
      SwigType_add_pointer(s);
      SwigType_remember(s);
      Delete(s);
    }

    /* emit code */
    Language::top(n);

    if (directorsEnabled()) {
      // Insert director runtime into the f_runtime file (make it occur before %header section)
      Swig_insert_file("director_common.swg", f_runtime);
      Swig_insert_file("director.swg", f_runtime);
    }

    /* Close language module */
    Append(methods, "\t { NULL, NULL, 0, NULL }\n");
    Append(methods, "};\n");
    Printf(f_wrappers, "%s\n", methods);

    if (builtin) {
      Dump(f_builtins, f_wrappers);
    }

    SwigType_emit_type_table(f_runtime, f_wrappers);

    Append(const_code, "{0, 0, 0, 0.0, 0, 0}};\n");
    Printf(f_wrappers, "%s\n", const_code);
    initialize_threads(f_init);

    Printf(f_init, "#if PY_VERSION_HEX >= 0x03000000\n");
    Printf(f_init, "  return m;\n");
    Printf(f_init, "#else\n");
    Printf(f_init, "  return;\n");
    Printf(f_init, "#endif\n");
    Printf(f_init, "}\n");

    Printf(f_wrappers, "#ifdef __cplusplus\n");
    Printf(f_wrappers, "}\n");
    Printf(f_wrappers, "#endif\n");

    if (shadow) {
      Swig_banner_target_lang(f_shadow_py, "#");
      if (!modern && !classic) {
	Printv(f_shadow, "# This file is compatible with both classic and new-style classes.\n", NIL);
      }
      if (Len(f_shadow_begin) > 0)
	Printv(f_shadow_py, "\n", f_shadow_begin, "\n", NIL);
      if (Len(f_shadow_after_begin) > 0)
      Printv(f_shadow_py, f_shadow_after_begin, "\n", NIL);
      if (moduleimport) {
	Replaceall(moduleimport, "$module", module);
	Printv(f_shadow_py, "\n", moduleimport, "\n", NIL);
      } else {
	Printv(f_shadow_py, default_import_code, NIL);
      }
      Printv(f_shadow_py, f_shadow, "\n", NIL);
      Printv(f_shadow_py, f_shadow_stubs, "\n", NIL);
      Delete(f_shadow_py);
    }

    /* Close all of the files */
    Dump(f_runtime, f_begin);
    Dump(f_header, f_begin);

    if (directorsEnabled()) {
      Dump(f_directors_h, f_runtime_h);
      Printf(f_runtime_h, "\n");
      Printf(f_runtime_h, "#endif\n");
      if (f_runtime_h != f_begin)
	Delete(f_runtime_h);
      Dump(f_directors, f_begin);
    }

    Dump(f_wrappers, f_begin);
    if (builtin && builtin_bases_needed)
      Printf(f_begin, "static PyTypeObject *builtin_bases[%d];\n\n", max_bases + 2);
    Wrapper_pretty_print(f_init, f_begin);

    Delete(default_import_code);
    Delete(f_shadow_after_begin);
    Delete(f_shadow_imports);
    Delete(f_shadow_begin);
    Delete(f_shadow);
    Delete(f_header);
    Delete(f_wrappers);
    Delete(f_builtins);
    Delete(f_init);
    Delete(f_directors);
    Delete(f_directors_h);
    Delete(f_runtime);
    Delete(f_begin);

    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * Emit the wrapper for PyInstanceMethod_New to MethodDef array.
   * This wrapper is used to implement -fastproxy,
   * as a replacement of new.instancemethod in Python 3.
   * ------------------------------------------------------------ */
  int add_pyinstancemethod_new() {
    String *name = NewString("SWIG_PyInstanceMethod_New");
    Printf(methods, "\t { (char *)\"%s\", (PyCFunction)%s, METH_O, NULL},\n", name, name);
    Delete(name);
    return 0;
  }

  /* ------------------------------------------------------------
   * subpkg_tail()
   *
   * Return the name of 'other' package relative to 'base'.
   *
   * 1. If 'other' is a sub-package of 'base', returns the 'other' relative to
   *    'base'.
   * 2. If 'other' and 'base' are equal, returns empty string "".
   * 3. In any other case, NULL pointer is returned.
   *
   * The 'base' and 'other' are expected to be fully qualified names.
   *
   * NOTE: none of 'base' nor 'other' can be null.
   *
   * Examples:
   *
   *  #  base       other         tail
   * --  ----       -----         ----
   *  1  "Foo"      "Foo.Bar" ->  "Bar"
   *  2	 "Foo"      "Foo."    ->  ""
   *  3	 "Foo"      "FooB.ar" ->  NULL
   *  4	 "Foo.Bar"  "Foo.Bar" ->  ""
   *  5  "Foo.Bar"  "Foo"     ->  NULL
   *  6  "Foo.Bar"  "Foo.Gez" ->  NULL
   *
   *  NOTE: the example #2 is actually a syntax error (at input). I believe
   *        swig parser prevents us from this case happening here.
   * ------------------------------------------------------------ */

  static String *subpkg_tail(const String *base, const String *other) {
    int baselen = Len(base);
    int otherlen = Len(other);

    if (Strncmp(other, base, baselen) == 0) {
      if ((baselen < otherlen) && (Char(other))[baselen] == '.') {
        return NewString((Char(other)) + baselen + 1);
      } else if (baselen == otherlen) {
        return NewString("");
      } else {
        return 0;
      }
    } else {
      return 0;
    }
  }

  /* ------------------------------------------------------------
   * abs_import_directive_string()
   *
   * Return a string containing python code to import module.
   *
   * 	pkg     package name or the module being imported
   * 	mod     module name of the module being imported
   * 	pfx     optional prefix to module name
   *
   * NOTE: keep this function consistent with abs_import_name_string().
   * ------------------------------------------------------------ */

  static String *abs_import_directive_string(const String *pkg, const String *mod, const char *pfx = "") {
    String *out = NewString("");

    if (pkg && *Char(pkg)) {
      Printf(out, "import %s.%s%s\n", pkg, pfx, mod);
    } else {
      Printf(out, "import %s%s\n", pfx, mod);
    }
    return out;
  }

  /* ------------------------------------------------------------
   * rel_import_directive_string()
   *
   * Return a string containing python code to import module that
   * is potentially within a package.
   *
   * 	mainpkg	package name of the module which imports the other module
   * 	pkg     package name or the module being imported
   * 	mod     module name of the module being imported
   * 	pfx     optional prefix to module name
   *
   * NOTE: keep this function consistent with rel_import_name_string().
   * ------------------------------------------------------------ */

  static String *rel_import_directive_string(const String *mainpkg, const String *pkg, const String *mod, const char *pfx = "") {

    /* NOTE: things are not so trivial. This is what we do here (by examples):
     *
     * 0. To import module 'foo', which is not in any package, we do absolute
     *    import:
     *
     *       import foo
     *
     * 1. To import 'pkg1.pkg2.foo', when mainpkg != "pkg1" and
     *    mainpkg != "pkg1.pkg2" or when mainpkg is not given we do absolute
     *    import:
     *
     *          import pkg1.pkg2.foo
     *
     * 2. To import module pkg1.foo, when mainpkg == "pkg1", we do:
     *
     *    - for py3 = 0:
     *
     *          import foo
     *
     *    - for py3 = 1:
     *
     *          from . import foo
     *
     * 3. To import "pkg1.pkg2.pkg3.foo", when mainpkg = "pkg1", we do:
     *
     *    - for py3 == 0:
     *
     *          import pkg2.pkg3.foo
     *
     *    - for py3 == 1:
     *
     *          from . import pkg2  # [1]
     *          import pkg1.pkg2.pkg3.foo
     *
     * NOTE: [1] is necessary for pkg2.foo to be present in the importing module
     */

    String *apkg = 0; // absolute (FQDN) package name of pkg
    String *rpkg = 0; // relative package name
    int py3_rlen1 = 0; // length of 1st level sub-package name, used by py3
    String *out = NewString("");

    if (pkg && *Char(pkg)) {
      if (mainpkg) {
	String *tail = subpkg_tail(mainpkg, pkg);
	if (tail) {
	  if (*Char(tail)) {
	    rpkg = NewString(tail);
	    const char *py3_end1 = Strchr(rpkg, '.');
	    if (!py3_end1)
	      py3_end1 = (Char(rpkg)) + Len(rpkg);
	    py3_rlen1 = (int)(py3_end1 - Char(rpkg));
	  } else {
	    rpkg = NewString("");
	  }
	  Delete(tail);
	} else {
	  apkg = NewString(pkg);
	}
      } else {
	apkg = NewString(pkg);
      }
    } else {
      apkg = NewString("");
    }

    if (apkg) {
      Printf(out, "import %s%s%s%s\n", apkg, *Char(apkg) ? "." : "", pfx, mod);
      Delete(apkg);
    } else {
      Printf(out, "from sys import version_info as _swig_python_version_info\n");
      Printf(out, "if _swig_python_version_info >= (2, 7, 0):\n");
      if (py3_rlen1)
	Printf(out, tab4 "from . import %.*s\n", py3_rlen1, rpkg);
      Printf(out, tab4 "from .%s import %s%s\n", rpkg, pfx, mod);
      Printf(out, "else:\n");
      Printf(out, tab4 "import %s%s%s%s\n", rpkg, *Char(rpkg) ? "." : "", pfx, mod);
      Printf(out, "del _swig_python_version_info\n");
      Delete(rpkg);
    }
    return out;
  }

  /* ------------------------------------------------------------
   * import_directive_string()
   * ------------------------------------------------------------ */

  static String *import_directive_string(const String *mainpkg, const String *pkg, const String *mod, const char *pfx = "") {
    if (!relativeimport) {
      return abs_import_directive_string(pkg, mod, pfx);
    } else {
      return rel_import_directive_string(mainpkg, pkg, mod, pfx);
    }
  }

  /* ------------------------------------------------------------
   * abs_import_name_string()
   *
   * Return a string with the name of a symbol (perhaps imported
   * from external module by absolute import directive).
   *
   * mainpkg  package name of current module
   * mainmod  module name of current module
   * pkg      package name of (perhaps other) module
   * mod      module name of (perhaps other) module
   * sym      symbol name
   *
   * NOTE: mainmod, mod, and sym can't be NULL.
   * NOTE: keep this function consistent with abs_import_directive_string()
   * ------------------------------------------------------------ */

  static String *abs_import_name_string(const String *mainpkg, const String *mainmod, const String *pkg, const String *mod, const String *sym) {
    String *out = NewString("");
    if (pkg && *Char(pkg)) {
      if (mainpkg && *Char(mainpkg)) {
        if (Strcmp(mainpkg,pkg) != 0 || Strcmp(mainmod, mod) != 0) {
          Printf(out, "%s.%s.", pkg, mod);
        }
      } else {
        Printf(out, "%s.%s.", pkg, mod);
      }
    } else if ((mainpkg && *Char(mainpkg)) || Strcmp(mainmod, mod) != 0) {
      Printf(out, "%s.", mod);
    }
    Append(out, sym);
    return out;
  }

  /* ------------------------------------------------------------
   * rel_import_name_string()
   *
   * Return a string with the name of a symbol (perhaps imported
   * from external module by relative import directive).
   *
   * mainpkg  package name of current module
   * mainmod  module name of current module
   * pkg      package name of (perhaps other) module
   * mod      module name of (perhaps other) module
   * sym      symbol name
   *
   * NOTE: mainmod, mod, and sym can't be NULL.
   * NOTE: keep this function consistent with rel_import_directive_string()
   * ------------------------------------------------------------ */

  static String *rel_import_name_string(const String *mainpkg, const String *mainmod, const String *pkg, const String *mod, const String *sym) {
    String *out = NewString("");
    if (pkg && *Char(pkg)) {
      String *tail = 0;
      if (mainpkg)
        tail = subpkg_tail(mainpkg, pkg);
      if (!tail)
        tail = NewString(pkg);
      if (*Char(tail)) {
        Printf(out, "%s.%s.", tail, mod);
      } else if (Strcmp(mainmod, mod) != 0) {
        Printf(out, "%s.", mod);
      }
      Delete(tail);
    } else if ((mainpkg && *Char(mainpkg)) || Strcmp(mainmod, mod) != 0) {
      Printf(out, "%s.", mod);
    }
    Append(out, sym);
    return out;
  }

  /* ------------------------------------------------------------
   * import_name_string()
   * ------------------------------------------------------------ */

  static String *import_name_string(const String *mainpkg, const String *mainmod, const String *pkg, const String *mod, const String *sym) {
    if (!relativeimport) {
      return abs_import_name_string(mainpkg,mainmod,pkg,mod,sym);
    } else {
      return rel_import_name_string(mainpkg,mainmod,pkg,mod,sym);
    }
  }

  /* ------------------------------------------------------------
   * importDirective()
   * ------------------------------------------------------------ */

  virtual int importDirective(Node *n) {
    if (shadow) {
      String *modname = Getattr(n, "module");

      if (modname) {
	// Find the module node for this imported module.  It should be the
	// first child but search just in case.
	Node *mod = firstChild(n);
	while (mod && Strcmp(nodeType(mod), "module") != 0)
	  mod = nextSibling(mod);

	Node *options = Getattr(mod, "options");
	String *pkg = options ? Getattr(options, "package") : 0;
	if (shadowimport) {
	  if (!options || (!Getattr(options, "noshadow") && !Getattr(options, "noproxy"))) {
	    String *_import = import_directive_string(package, pkg, modname, "_");
	    if (!GetFlagAttr(f_shadow_imports, _import)) {
	      String *import = import_directive_string(package, pkg, modname);
	      Printf(builtin ? f_shadow_after_begin : f_shadow, "%s", import);
	      Delete(import);
	      SetFlag(f_shadow_imports, _import);
	    }
	    Delete(_import);
	  }
	}
      }
    }
    return Language::importDirective(n);
  }

  /* ------------------------------------------------------------
   * funcCall()
   *
   * Emit shadow code to call a function in the extension
   * module. Using proper argument and calling style for
   * given node n.
   * ------------------------------------------------------------ */
  String *funcCall(String *name, String *parms) {
    String *str = NewString("");

    Printv(str, module, ".", name, "(", parms, ")", NIL);
    return str;
  }

  /* ------------------------------------------------------------
   * indent_pythoncode()
   *
   * Format (indent) Python code.
   * Remove leading whitespace from 'code' and re-indent using
   * the indentation string in 'indent'.
   * ------------------------------------------------------------ */

  String *indent_pythoncode(const String *code, const_String_or_char_ptr indent, String *file, int line, const char *directive_name) {
    String *out = NewString("");
    String *temp;
    char *t;
    if (!indent)
      indent = "";

    temp = NewString(code);

    t = Char(temp);
    if (*t == '{') {
      Delitem(temp, 0);
      Delitem(temp, DOH_END);
    }

    /* Split the input text into lines */
    List *clist = SplitLines(temp);
    Delete(temp);

    // Line number within the pythoncode.
    int py_line = 0;

    String *initial = 0;
    Iterator si;

    /* Get the initial indentation.  Skip lines which only contain whitespace
     * and/or a comment, as the indentation of those doesn't matter:
     *
     *     A logical line that contains only spaces, tabs, formfeeds and
     *     possibly a comment, is ignored (i.e., no NEWLINE token is
     *     generated).
     *
     * see:
     * https://docs.python.org/2/reference/lexical_analysis.html#blank-lines
     * https://docs.python.org/3/reference/lexical_analysis.html#blank-lines
     */
    for (si = First(clist); si.item; si = Next(si), ++py_line) {
      const char *c = Char(si.item);
      int i;
      for (i = 0; isspace((unsigned char)c[i]); i++) {
	// Scan forward until we find a non-space (which may be a null byte).
      }
      char ch = c[i];
      if (ch && ch != '#') {
	// Found a line with actual content.
	initial = NewStringWithSize(c, i);
	break;
      }
      if (ch) {
	Printv(out, indent, c, NIL);
      }
      Putc('\n', out);
    }

    // Process remaining lines.
    for ( ; si.item; si = Next(si), ++py_line) {
      const char *c = Char(si.item);
      // If no prefixed line was found, the above loop should have completed.
      assert(initial);

      int i;
      for (i = 0; isspace((unsigned char)c[i]); i++) {
	// Scan forward until we find a non-space (which may be a null byte).
      }
      char ch = c[i];
      if (!ch) {
	// Line is just whitespace - emit an empty line.
	Putc('\n', out);
	continue;
      }

      if (ch == '#') {
	// Comment - the indentation doesn't matter to python, but try to
	// adjust the whitespace for the benefit of human readers (though SWIG
	// currently seems to always remove any whitespace before a '#' before
	// we get here, in which case we'll just leave the comment at the start
	// of the line).
	if (i >= Len(initial)) {
	  Printv(out, indent, NIL);
	}

	Printv(out, c + i, "\n", NIL);
	continue;
      }

      if (i < Len(initial)) {
	// There's non-whitespace in the initial prefix of this line.
	Swig_error(file, line, "Line indented less than expected (line %d of %s) as no line should be indented less than the indentation in line 1\n", py_line, directive_name);
	Printv(out, indent, c, "\n", NIL);
      } else {
	if (memcmp(c, Char(initial), Len(initial)) == 0) {
	  // Prefix matches initial, so just remove it.
	  Printv(out, indent, c + Len(initial), "\n", NIL);
	  continue;
	}
	Swig_warning(WARN_PYTHON_INDENT_MISMATCH,
		     file, line, "Whitespace indentation is inconsistent compared to earlier lines (line %d of %s)\n", py_line, directive_name);
	// To avoid gratuitously breaking interface files which worked with
	// SWIG <= 3.0.5, we remove a prefix of the same number of bytes for
	// lines which start with different whitespace to the line we got
	// 'initial' from.
	Printv(out, indent, c + Len(initial), "\n", NIL);
      }
    }
    Delete(clist);
    return out;
  }

  /* ------------------------------------------------------------
   * indent_docstring()
   *
   * Format (indent) a Python docstring.
   * Remove leading whitespace from 'code' and re-indent using
   * the indentation string in 'indent'.
   * ------------------------------------------------------------ */

  String *indent_docstring(const String *code, const_String_or_char_ptr indent) {
    String *out = NewString("");
    String *temp;
    char *t;
    if (!indent)
      indent = "";

    temp = NewString(code);

    t = Char(temp);
    if (*t == '{') {
      Delitem(temp, 0);
      Delitem(temp, DOH_END);
    }

    /* Split the input text into lines */
    List *clist = SplitLines(temp);
    Delete(temp);

    Iterator si;

    int truncate_characters_count = INT_MAX;
    for (si = First(clist); si.item; si = Next(si)) {
      const char *c = Char(si.item);
      int i;
      for (i = 0; isspace((unsigned char)c[i]); i++) {
	// Scan forward until we find a non-space (which may be a null byte).
      }
      char ch = c[i];
      if (ch) {
	// Found a line which isn't just whitespace
	if (i < truncate_characters_count)
	  truncate_characters_count = i;
      }
    }

    if (truncate_characters_count == INT_MAX)
      truncate_characters_count = 0;

    for (si = First(clist); si.item; si = Next(si)) {
      const char *c = Char(si.item);

      int i;
      for (i = 0; isspace((unsigned char)c[i]); i++) {
	// Scan forward until we find a non-space (which may be a null byte).
      }
      char ch = c[i];
      if (!ch) {
	// Line is just whitespace - emit an empty line.
	Putc('\n', out);
	continue;
      }

      Printv(out, indent, c + truncate_characters_count, "\n", NIL);
    }
    Delete(clist);
    return out;
  }

  /* ------------------------------------------------------------
   * autodoc level declarations
   * ------------------------------------------------------------ */

  enum autodoc_l {
    NO_AUTODOC = -2,		// no autodoc
    STRING_AUTODOC = -1,	// use provided string
    NAMES_AUTODOC = 0,		// only parameter names
    TYPES_AUTODOC = 1,		// parameter names and types
    EXTEND_AUTODOC = 2,		// extended documentation and parameter names
    EXTEND_TYPES_AUTODOC = 3	// extended documentation and parameter types + names
  };


  autodoc_l autodoc_level(String *autodoc) {
    autodoc_l dlevel = NO_AUTODOC;
    char *c = Char(autodoc);
    if (c) {
      if (isdigit(c[0])) {
	dlevel = (autodoc_l) atoi(c);
      } else {
	if (strcmp(c, "extended") == 0) {
	  dlevel = EXTEND_AUTODOC;
	} else {
	  dlevel = STRING_AUTODOC;
	}
      }
    }
    return dlevel;
  }


  /* ------------------------------------------------------------
   * have_docstring()
   *
   * Check if there is a docstring directive and it has text,
   * or there is an autodoc flag set
   * ------------------------------------------------------------ */

  bool have_docstring(Node *n) {
    String *str = Getattr(n, "feature:docstring");
    return (str && Len(str) > 0) || (Getattr(n, "feature:autodoc") && !GetFlag(n, "feature:noautodoc"));
  }

  /* ------------------------------------------------------------
   * docstring()
   *
   * Get the docstring text, stripping off {} if necessary,
   * and enclose in triple double quotes.  If autodoc is also
   * set then it will build a combined docstring.
   * ------------------------------------------------------------ */

  String *docstring(Node *n, autodoc_t ad_type, const String *indent, bool use_triple = true) {
    String *str = Getattr(n, "feature:docstring");
    bool have_ds = (str && Len(str) > 0);
    bool have_auto = (Getattr(n, "feature:autodoc") && !GetFlag(n, "feature:noautodoc"));
    const char *triple_double = use_triple ? "\"\"\"" : "";
    String *autodoc = NULL;
    String *doc = NULL;

    if (have_ds) {
      char *t = Char(str);
      if (*t == '{') {
	Delitem(str, 0);
	Delitem(str, DOH_END);
      }
    }

    if (have_auto) {
      autodoc = make_autodoc(n, ad_type);
      have_auto = (autodoc && Len(autodoc) > 0);
    }
    // If there is more than one line then make docstrings like this:
    //
    //      """
    //      This is line1
    //      And here is line2 followed by the rest of them
    //      """
    //
    // otherwise, put it all on a single line
    //
    if (have_auto && have_ds) {	// Both autodoc and docstring are present
      doc = NewString("");
      Printv(doc, triple_double, "\n",
	     indent_docstring(autodoc, indent), "\n",
	     indent_docstring(str, indent), indent, triple_double, NIL);
    } else if (!have_auto && have_ds) {	// only docstring
      if (Strchr(str, '\n') == 0) {
	doc = NewStringf("%s%s%s", triple_double, str, triple_double);
      } else {
	doc = NewString("");
	Printv(doc, triple_double, "\n", indent_docstring(str, indent), indent, triple_double, NIL);
      }
    } else if (have_auto && !have_ds) {	// only autodoc
      if (Strchr(autodoc, '\n') == 0) {
	doc = NewStringf("%s%s%s", triple_double, autodoc, triple_double);
      } else {
	doc = NewString("");
	Printv(doc, triple_double, "\n", indent_docstring(autodoc, indent), indent, triple_double, NIL);
      }
    } else
      doc = NewString("");

    // Save the generated strings in the parse tree in case they are used later
    // by post processing tools
    Setattr(n, "python:docstring", doc);
    Setattr(n, "python:autodoc", autodoc);
    return doc;
  }   

  /* ------------------------------------------------------------
   * cdocstring()
   *
   * Get the docstring text as it would appear in C-language
   * source code.
   * ------------------------------------------------------------ */

  String *cdocstring(Node *n, autodoc_t ad_type)
  {
    String *ds = docstring(n, ad_type, "", false);
    Replaceall(ds, "\\", "\\\\");
    Replaceall(ds, "\"", "\\\"");
    Replaceall(ds, "\n", "\\n\"\n\t\t\"");
    return ds;
  }

  virtual String *makeParameterName(Node *n, Parm *p, int arg_num, bool = false) const {
    // For the keyword arguments, we want to preserve the names as much as possible,
    // so we only minimally rename them in Swig_name_make(), e.g. replacing "keyword"
    // with "_keyword" if they have any name at all.
    if (check_kwargs(n)) {
      String *name = Getattr(p, "name");
      if (name)
	return Swig_name_make(p, 0, name, 0, 0);
    }

    // For the other cases use the general function which replaces arguments whose
    // names clash with keywords with (less useful) "argN".
    return Language::makeParameterName(n, p, arg_num);
  }

  /* -----------------------------------------------------------------------------
   * addMissingParameterNames()
   *
   * For functions that have not had nameless parameters set in the Language class.
   *
   * Inputs: 
   *   plist - entire parameter list
   *   arg_offset - argument number for first parameter
   * Side effects:
   *   The "lname" attribute in each parameter in plist will be contain a parameter name
   * ----------------------------------------------------------------------------- */

  void addMissingParameterNames(Node *n, ParmList *plist, int arg_offset) {
    Parm *p = plist;
    int i = arg_offset;
    while (p) {
      if (!Getattr(p, "lname")) {
	String *name = makeParameterName(n, p, i);
	Setattr(p, "lname", name);
	Delete(name);
      }
      i++;
      p = nextSibling(p);
    }
  }

  /* ------------------------------------------------------------
   * make_autodocParmList()
   *
   * Generate the documentation for the function parameters
   * Parameters:
   *    func_annotation: Function annotation support
   * ------------------------------------------------------------ */

  String *make_autodocParmList(Node *n, bool showTypes, bool calling = false, bool func_annotation = false) {

    String *doc = NewString("");
    String *pdocs = 0;
    ParmList *plist = CopyParmList(Getattr(n, "parms"));
    Parm *p;
    Parm *pnext;


    // Normally we start counting auto-generated argument names from 1, but we should do it from 2
    // if the first argument is "self", i.e. if we're handling a non-static member function.
    int arg_num = 1;
    if (is_wrapping_class()) {
      if (Cmp(Getattr(n, "storage"), "static") != 0)
	arg_num++;
    }

    if (calling)
      func_annotation = false;

    addMissingParameterNames(n, plist, arg_num); // for $1_name substitutions done in Swig_typemap_attach_parms
    Swig_typemap_attach_parms("in", plist, 0);
    Swig_typemap_attach_parms("doc", plist, 0);

    if (Strcmp(ParmList_protostr(plist), "void") == 0) {
      //No parameters actually
      return doc;
    }

    for (p = plist; p; p = pnext, arg_num++) {

      String *tm = Getattr(p, "tmap:in");
      if (tm) {
	pnext = Getattr(p, "tmap:in:next");
	if (checkAttribute(p, "tmap:in:numinputs", "0")) {
	  continue;
	}
      } else {
	pnext = nextSibling(p);
      }

      String *name = 0;
      String *type = 0;
      String *value = 0;
      String *pdoc = Getattr(p, "tmap:doc");
      if (pdoc) {
	name = Getattr(p, "tmap:doc:name");
	type = Getattr(p, "tmap:doc:type");
	value = Getattr(p, "tmap:doc:value");
      }

      // Note: the generated name should be consistent with that in kwnames[]
      String *made_name = 0;
      if (!name) {
	name = made_name = makeParameterName(n, p, arg_num);
      }

      type = type ? type : Getattr(p, "type");
      value = value ? value : Getattr(p, "value");

      if (SwigType_isvarargs(type)) {
	Delete(made_name);
	break;
      }

      if (Len(doc)) {
	// add a comma to the previous one if any
	Append(doc, ", ");
      }

      // Do the param type too?
      Node *nn = classLookup(Getattr(p, "type"));
      String *type_str = nn ? Copy(Getattr(nn, "sym:name")) : SwigType_str(type, 0);
      if (showTypes)
	Printf(doc, "%s ", type_str);

      Append(doc, name);
      if (pdoc) {
	if (!pdocs)
	  // numpydoc style: https://github.com/numpy/numpy/blob/master/doc/HOWTO_DOCUMENT.rst.txt
	  pdocs = NewString("\nParameters\n----------\n");
	Printf(pdocs, "%s\n", pdoc);
      }
      // Write the function annotation
      if (func_annotation)
	Printf(doc, ": '%s'", type_str);

      // Write default value
      if (value && !calling) {
	String *new_value = convertValue(value, Getattr(p, "type"));
	if (new_value)
	  Printf(doc, "=%s", new_value);
      }
      Delete(type_str);
      Delete(made_name);
    }
    if (pdocs)
      Setattr(n, "feature:pdocs", pdocs);
    Delete(plist);
    return doc;
  }

  /* ------------------------------------------------------------
   * make_autodoc()
   *
   * Build a docstring for the node, using parameter and other
   * info in the parse tree.  If the value of the autodoc
   * attribute is "0" then do not include parameter types, if
   * it is "1" (the default) then do.  If it has some other
   * value then assume it is supplied by the extension writer
   * and use it directly.
   * ------------------------------------------------------------ */

  String *make_autodoc(Node *n, autodoc_t ad_type) {
    int extended = 0;
    // If the function is overloaded then this function is called
    // for the last one.  Rewind to the first so the docstrings are
    // in order.
    while (Getattr(n, "sym:previousSibling"))
      n = Getattr(n, "sym:previousSibling");

    String *doc = NewString("");
    while (n) {
      bool showTypes = false;
      bool skipAuto = false;
      String *autodoc = Getattr(n, "feature:autodoc");
      autodoc_l dlevel = autodoc_level(autodoc);
      switch (dlevel) {
      case NO_AUTODOC:
	break;
      case NAMES_AUTODOC:
	showTypes = false;
	break;
      case TYPES_AUTODOC:
	showTypes = true;
	break;
      case EXTEND_AUTODOC:
	extended = 1;
	showTypes = false;
	break;
      case EXTEND_TYPES_AUTODOC:
	extended = 1;
	showTypes = true;
	break;
      case STRING_AUTODOC:
	Append(doc, autodoc);
	skipAuto = true;
	break;
      }

      if (!skipAuto) {
	String *symname = Getattr(n, "sym:name");
	SwigType *type = Getattr(n, "type");
	String *type_str = NULL;

	if (type) {
	  if (Strcmp(type, "void") == 0) {
	    type_str = NULL;
	  } else {
	    Node *nn = classLookup(type);
	    type_str = nn ? Copy(Getattr(nn, "sym:name")) : SwigType_str(type, 0);
	  }
	}

	switch (ad_type) {
	case AUTODOC_CLASS:
	  {
	    // Only do the autodoc if there isn't a docstring for the class
	    String *str = Getattr(n, "feature:docstring");
	    if (!str || Len(str) == 0) {
	      if (builtin) {
		String *name = Getattr(n, "name");
		String *rname = add_explicit_scope(SwigType_namestr(name));
		Printf(doc, "%s", rname);
		Delete(rname);
	      } else {
		if (CPlusPlus) {
		  Printf(doc, "Proxy of C++ %s class.", real_classname);
		} else {
		  Printf(doc, "Proxy of C %s struct.", real_classname);
		}
	      }
	    }
	  }
	  break;
	case AUTODOC_CTOR:
	  if (Strcmp(class_name, symname) == 0) {
	    String *paramList = make_autodocParmList(n, showTypes);
	    Printf(doc, "__init__(");
	    if (showTypes)
	      Printf(doc, "%s ", getClassName());
	    if (Len(paramList))
	      Printf(doc, "self, %s) -> %s", paramList, class_name);
	    else
	      Printf(doc, "self) -> %s", class_name);
	  } else
	    Printf(doc, "%s(%s) -> %s", symname, make_autodocParmList(n, showTypes), class_name);
	  break;

	case AUTODOC_DTOR:
	  if (showTypes)
	    Printf(doc, "__del__(%s self)", getClassName());
	  else
	    Printf(doc, "__del__(self)");
	  break;

	case AUTODOC_STATICFUNC:
	  Printf(doc, "%s(%s)", symname, make_autodocParmList(n, showTypes));
	  if (type_str)
	    Printf(doc, " -> %s", type_str);
	  break;

	case AUTODOC_FUNC:
	  Printf(doc, "%s(%s)", symname, make_autodocParmList(n, showTypes));
	  if (type_str)
	    Printf(doc, " -> %s", type_str);
	  break;

	case AUTODOC_METHOD:
	  String *paramList = make_autodocParmList(n, showTypes);
	  Printf(doc, "%s(", symname);
	  if (showTypes)
	    Printf(doc, "%s ", class_name);
	  if (Len(paramList))
	    Printf(doc, "self, %s)", paramList);
	  else
	    Printf(doc, "self)");
	  if (type_str)
	    Printf(doc, " -> %s", type_str);
	  break;
	}
	Delete(type_str);
      }
      if (extended) {
	String *pdocs = Getattr(n, "feature:pdocs");
	if (pdocs) {
	  Printv(doc, "\n", pdocs, NULL);
	}
      }
      // if it's overloaded then get the next decl and loop around again
      n = Getattr(n, "sym:nextSibling");
      if (n)
	Append(doc, "\n");
    }

    return doc;
  }

  /* ------------------------------------------------------------
   * convertDoubleValue()
   *
   * Check if the given string looks like a decimal floating point constant
   * and return it if it does, otherwise return NIL.
   * ------------------------------------------------------------ */
  String *convertDoubleValue(String *v) {
    const char *const s = Char(v);
    char *end;

    double value = strtod(s, &end);
    (void) value;
    if (errno != ERANGE && end != s) {
      // An added complication: at least some versions of strtod() recognize
      // hexadecimal floating point numbers which don't exist in Python, so
      // detect them ourselves and refuse to convert them (this can't be done
      // without loss of precision in general).
      //
      // Also don't accept neither "NAN" nor "INFINITY" (both of which
      // conveniently contain "n").
      if (strpbrk(s, "xXnN"))
	return NIL;

      // Disregard optional "f" suffix, it can be just dropped in Python as it
      // uses doubles for everything anyhow.
      for (char * p = end; *p != '\0'; ++p) {
	switch (*p) {
	  case 'f':
	  case 'F':
	    break;

	  default:
	    return NIL;
	}
      }

      // Avoid unnecessary string allocation in the common case when we don't
      // need to remove any suffix.
      return *end == '\0' ? v : NewStringWithSize(s, (int)(end - s));
    }

    return NIL;
  }

  /* ------------------------------------------------------------
   * convertValue()
   *
   * Check if string v can be a Python value literal or a
   * constant. Return NIL if it isn't.
   * ------------------------------------------------------------ */
  String *convertValue(String *v, SwigType *type) {
    const char *const s = Char(v);
    char *end;
    String *result = NIL;
    bool fail = false;
    SwigType *resolved_type = 0;

    // Check if this is a number in any base.
    long value = strtol(s, &end, 0);
    (void) value;
    if (end != s) {
      if (errno == ERANGE) {
	// There was an overflow, we could try representing the value as Python
	// long integer literal, but for now don't bother with it.
	fail = true;
      } else {
	if (*end != '\0') {
	  // If there is a suffix after the number, we can safely ignore any
	  // combination of "l" and "u", but not anything else (again, stuff like
	  // "LL" could be handled, but we don't bother to do it currently).
	  bool seen_long = false;
	  for (char * p = end; *p != '\0'; ++p) {
	    switch (*p) {
	      case 'l':
	      case 'L':
		// Bail out on "LL".
		if (seen_long) {
		  fail = true;
		  break;
		}
		seen_long = true;
		break;

	      case 'u':
	      case 'U':
		break;

	      default:
		// Except that our suffix could actually be the fractional part of
		// a floating point number, so we still have to check for this.
		result = convertDoubleValue(v);
	    }
	  }
	}

	if (!fail) {
	  // Allow integers as the default value for a bool parameter.
	  resolved_type = SwigType_typedef_resolve_all(type);
	  if (Cmp(resolved_type, "bool") == 0) {
	    result = NewString(value ? "True" : "False");
	  } else {
	    // Deal with the values starting with 0 first as they can be octal or
	    // hexadecimal numbers or even pointers.
	    if (s[0] == '0') {
	      if (Len(v) == 1) {
		// This is just a lone 0, but it needs to be represented differently
		// in Python depending on whether it's a zero or a null pointer.
		if (SwigType_ispointer(resolved_type))
		  result = NewString("None");
		else
		  result = v;
	      } else if (s[1] == 'x' || s[1] == 'X') {
		// This must have been a hex number, we can use it directly in Python,
		// so nothing to do here.
	      } else {
		// This must have been an octal number, we have to change its prefix
		// to be "0o" in Python 3 only (and as long as we still support Python
		// 2.5, this can't be done unconditionally).
		if (py3) {
		  if (end - s > 1) {
		    result = NewString("0o");
		    Append(result, NewStringWithSize(s + 1, (int)(end - s - 1)));
		  }
		}
	      }
	    }

	    // Avoid unnecessary string allocation in the common case when we don't
	    // need to remove any suffix.
	    if (!result)
	      result = *end == '\0' ? v : NewStringWithSize(s, (int)(end - s));
	  }
	}
      }
    }

    // Check if this is a floating point number (notice that it wasn't
    // necessarily parsed as a long above, consider e.g. ".123").
    if (!fail && !result) {
      result = convertDoubleValue(v);
      if (!result) {
	if (Strcmp(v, "true") == 0 || Strcmp(v, "TRUE") == 0)
	  result = NewString("True");
	else if (Strcmp(v, "false") == 0 || Strcmp(v, "FALSE") == 0)
	  result = NewString("False");
	else if (Strcmp(v, "NULL") == 0 || Strcmp(v, "nullptr") == 0) {
	  if (!resolved_type)
	    resolved_type = SwigType_typedef_resolve_all(type);
	  result = SwigType_ispointer(resolved_type) ? NewString("None") : NewString("0");
	}

	// This could also be an enum type, default value of which could be
	// representable in Python if it doesn't include any scope (which could,
	// but currently is not, translated).
	else if (!Strchr(s, ':')) {
	  Node *lookup = Swig_symbol_clookup(v, 0);
	  if (lookup) {
	    if (Cmp(Getattr(lookup, "nodeType"), "enumitem") == 0)
	      result = Getattr(lookup, "sym:name");
	  }
	}
      }
    }

    Delete(resolved_type);
    return result;
  }

  /* ------------------------------------------------------------
   * is_representable_as_pyargs()
   *
   * Check if the function parameters default argument values
   * can be represented in Python.
   *
   * If this method returns false, the parameters will be translated
   * to a generic "*args" which allows us to deal with default values
   * at C++ code level where they can always be handled.
   * ------------------------------------------------------------ */
  bool is_representable_as_pyargs(Node *n) {
    ParmList *plist = CopyParmList(Getattr(n, "parms"));
    Swig_typemap_attach_parms("default", plist, NULL);

    Parm *p;
    Parm *pnext;

    for (p = plist; p; p = pnext) {
      pnext = nextSibling(p);
      String *tm = Getattr(p, "tmap:in");
      if (tm) {
	Parm *in_next = Getattr(p, "tmap:in:next");
	if (in_next)
	  pnext = in_next;
	if (checkAttribute(p, "tmap:in:numinputs", "0")) {
	  continue;
	}
      }

      // "default" typemap can contain arbitrary C++ code, so while it could, in
      // principle, be possible to examine it and check if it's just something
      // simple of the form "$1 = expression" and then use convertValue() to
      // check if expression can be used in Python, but for now we just
      // pessimistically give up and prefer to handle this at C++ level only.
      if (Getattr(p, "tmap:default"))
	return false;

      if (String *value = Getattr(p, "value")) {
	String *type = Getattr(p, "type");
	if (!convertValue(value, type))
	  return false;
      }
    }

    return true;
  }


  /* ------------------------------------------------------------
   * is_real_overloaded()
   *
   * Check if the function is overloaded, but not just have some
   * siblings generated due to the original function have 
   * default arguments.
   * ------------------------------------------------------------ */
  bool is_real_overloaded(Node *n) {
    Node *h = Getattr(n, "sym:overloaded");
    Node *i;
    if (!h)
      return false;

    i = Getattr(h, "sym:nextSibling");
    while (i) {
      Node *nn = Getattr(i, "defaultargs");
      if (nn != h) {
	/* Check if overloaded function has defaultargs and 
	 * pointed to the first overloaded. */
	return true;
      }
      i = Getattr(i, "sym:nextSibling");
    }

    return false;
  }

  /* ------------------------------------------------------------
   * make_pyParmList()
   *
   * Generate parameter list for Python functions or methods,
   * reuse make_autodocParmList() to do so.
   * ------------------------------------------------------------ */
  String *make_pyParmList(Node *n, bool in_class, bool is_calling, int kw) {
    /* Get the original function for a defaultargs copy, 
     * see default_arguments() in parser.y. */
    Node *nn = Getattr(n, "defaultargs");
    if (nn)
      n = nn;

    /* We prefer to explicitly list all parameters of the C function in the
       generated Python code as this makes the function more convenient to use,
       however in some cases we must replace the real parameters list with just
       the catch all "*args". This happens when:

	1. The function is overloaded as Python doesn't support this.
	2. We were explicitly asked to use the "compact" arguments form.
	3. We were explicitly asked to use default args from C via the "python:cdefaultargs" feature.
	4. One of the default argument values can't be represented in Python.
     */
    if (is_real_overloaded(n) || GetFlag(n, "feature:compactdefaultargs") || GetFlag(n, "feature:python:cdefaultargs") || !is_representable_as_pyargs(n)) {
      String *parms = NewString("");
      if (in_class)
	Printf(parms, "self, ");
      Printf(parms, "*args");
      if (kw)
	Printf(parms, ", **kwargs");
      return parms;
    }

    bool funcanno = py3 ? true : false;
    String *params = NewString("");
    String *_params = make_autodocParmList(n, false, is_calling, funcanno);

    if (in_class) {
      Printf(params, "self");
      if (Len(_params) > 0)
	Printf(params, ", ");
    }

    Printv(params, _params, NULL);

    return params;
  }

  /* ------------------------------------------------------------
   * have_pythonprepend()
   *
   * Check if there is a %pythonprepend directive and it has text
   * ------------------------------------------------------------ */

  bool have_pythonprepend(Node *n) {
    String *str = Getattr(n, "feature:pythonprepend");
    return (str && Len(str) > 0);
  }

  /* ------------------------------------------------------------
   * pythonprepend()
   *
   * Get the %pythonprepend code, stripping off {} if necessary
   * ------------------------------------------------------------ */

  String *pythonprepend(Node *n) {
    String *str = Getattr(n, "feature:pythonprepend");
    char *t = Char(str);
    if (*t == '{') {
      Delitem(str, 0);
      Delitem(str, DOH_END);
    }
    return str;
  }

  /* ------------------------------------------------------------
   * have_pythonappend()
   *
   * Check if there is a %pythonappend directive and it has text
   * ------------------------------------------------------------ */

  bool have_pythonappend(Node *n) {
    String *str = Getattr(n, "feature:pythonappend");
    if (!str)
      str = Getattr(n, "feature:addtofunc");
    return (str && Len(str) > 0);
  }

  /* ------------------------------------------------------------
   * pythonappend()
   *
   * Get the %pythonappend code, stripping off {} if necessary
   * ------------------------------------------------------------ */

  String *pythonappend(Node *n) {
    String *str = Getattr(n, "feature:pythonappend");
    if (!str)
      str = Getattr(n, "feature:addtofunc");

    char *t = Char(str);
    if (*t == '{') {
      Delitem(str, 0);
      Delitem(str, DOH_END);
    }
    return str;
  }

  /* ------------------------------------------------------------
   * have_addtofunc()
   *
   * Check if there is a %addtofunc directive and it has text
   * ------------------------------------------------------------ */

  bool have_addtofunc(Node *n) {
    return have_pythonappend(n) || have_pythonprepend(n) || have_docstring(n);
  }


  /* ------------------------------------------------------------
   * returnTypeAnnotation()
   *
   * Helper function for constructing the function annotation
   * of the returning type, return a empty string for Python 2.x
   * ------------------------------------------------------------ */
  String *returnTypeAnnotation(Node *n) {
    String *ret = 0;
    Parm *p = Getattr(n, "parms");
    String *tm;
    /* Try to guess the returning type by argout typemap,
     * however the result may not accurate. */
    while (p) {
      if ((tm = Getattr(p, "tmap:argout:match_type"))) {
	tm = SwigType_str(tm, 0);
	if (ret)
	  Printv(ret, ", ", tm, NULL);
	else
	  ret = tm;
	p = Getattr(p, "tmap:argout:next");
      } else {
	p = nextSibling(p);
      }
    }
    /* If no argout typemap, then get the returning type from
     * the function prototype. */
    if (!ret) {
      ret = Getattr(n, "type");
      if (ret)
	ret = SwigType_str(ret, 0);
    }
    return (ret && py3) ? NewStringf(" -> \"%s\"", ret)
	: NewString("");
  }

  /* ------------------------------------------------------------
   * emitFunctionShadowHelper()
   *
   * Refactoring some common code out of functionWrapper and
   * dispatchFunction that writes the proxy code for non-member
   * functions.
   * ------------------------------------------------------------ */

  void emitFunctionShadowHelper(Node *n, File *f_dest, String *name, int kw) {
    String *parms = make_pyParmList(n, false, false, kw);
    String *callParms = make_pyParmList(n, false, true, kw);
    /* Make a wrapper function to insert the code into */
    Printv(f_dest, "\ndef ", name, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL);
    if (have_docstring(n))
      Printv(f_dest, tab4, docstring(n, AUTODOC_FUNC, tab4), "\n", NIL);
    if (have_pythonprepend(n))
      Printv(f_dest, indent_pythoncode(pythonprepend(n), tab4, Getfile(n), Getline(n), "%pythonprepend or %feature(\"pythonprepend\")"), "\n", NIL);
    if (have_pythonappend(n)) {
      Printv(f_dest, tab4 "val = ", funcCall(name, callParms), "\n", NIL);
      Printv(f_dest, indent_pythoncode(pythonappend(n), tab4, Getfile(n), Getline(n), "%pythonappend or %feature(\"pythonappend\")"), "\n", NIL);
      Printv(f_dest, tab4 "return val\n", NIL);
    } else {
      Printv(f_dest, tab4 "return ", funcCall(name, callParms), "\n", NIL);
    }

    if (!have_addtofunc(n)) {
      /* If there is no addtofunc directive then just assign from the extension module (for speed up) */
      Printv(f_dest, name, " = ", module, ".", name, "\n", NIL);
    }
  }


  /* ------------------------------------------------------------
   * check_kwargs()
   *
   * check if using kwargs is allowed for this Node
   * ------------------------------------------------------------ */

  int check_kwargs(Node *n) const {
    return (use_kw || GetFlag(n, "feature:kwargs"))
	&& !GetFlag(n, "memberset") && !GetFlag(n, "memberget");
  }


  /* ------------------------------------------------------------
   * add_method()
   * ------------------------------------------------------------ */

  void add_method(String *name, String *function, int kw, Node *n = 0, int funpack= 0, int num_required= -1, int num_arguments = -1) {
    if (!kw) {
      if (n && funpack) {
	if (num_required == 0 && num_arguments == 0) {
	  Printf(methods, "\t { (char *)\"%s\", (PyCFunction)%s, METH_NOARGS, ", name, function);
	} else if (num_required == 1 && num_arguments == 1) {
	  Printf(methods, "\t { (char *)\"%s\", (PyCFunction)%s, METH_O, ", name, function);
	} else {
	  Printf(methods, "\t { (char *)\"%s\", %s, METH_VARARGS, ", name, function);
	}
      } else {
	Printf(methods, "\t { (char *)\"%s\", %s, METH_VARARGS, ", name, function);
      }
    } else {
      Printf(methods, "\t { (char *)\"%s\", (PyCFunction) %s, METH_VARARGS | METH_KEYWORDS, ", name, function);
    }

    if (!n) {
      Append(methods, "NULL");
    } else if (have_docstring(n)) {
      String *ds = cdocstring(n, AUTODOC_FUNC);
      Printf(methods, "(char *)\"%s\"", ds);
      Delete(ds);
    } else if (Getattr(n, "feature:callback")) {
      Printf(methods, "(char *)\"swig_ptr: %s\"", Getattr(n, "feature:callback:name"));
    } else {
      Append(methods, "NULL");
    }

    Append(methods, "},\n");
  }

  /* ------------------------------------------------------------
   * dispatchFunction()
   * ------------------------------------------------------------ */
  void dispatchFunction(Node *n, String *linkage, int funpack = 0, bool builtin_self = false, bool builtin_ctor = false, bool director_class = false) {
    /* Last node in overloaded chain */

    bool add_self = builtin_self && (!builtin_ctor || director_class);

    int maxargs;

    String *tmp = NewString("");
    String *dispatch;
    const char *dispatch_code = funpack ? "return %s(self, argc, argv);" : "return %s(self, args);";

    if (castmode) {
      dispatch = Swig_overload_dispatch_cast(n, dispatch_code, &maxargs);
    } else {
      dispatch = Swig_overload_dispatch(n, dispatch_code, &maxargs);
    }

    /* Generate a dispatch wrapper for all overloaded functions */

    Wrapper *f = NewWrapper();
    String *symname = Getattr(n, "sym:name");
    String *wname = Swig_name_wrapper(symname);

    Printv(f->def, linkage, builtin_ctor ? "int " : "PyObject *", wname, "(PyObject *self, PyObject *args) {", NIL);

    Wrapper_add_local(f, "argc", "Py_ssize_t argc");
    Printf(tmp, "PyObject *argv[%d] = {0}", maxargs + 1);
    Wrapper_add_local(f, "argv", tmp);

    if (!fastunpack) {
      Wrapper_add_local(f, "ii", "Py_ssize_t ii");
      if (maxargs - (add_self ? 1 : 0) > 0)
	Append(f->code, "if (!PyTuple_Check(args)) SWIG_fail;\n");
      Append(f->code, "argc = args ? PyObject_Length(args) : 0;\n");
      if (add_self)
	Append(f->code, "argv[0] = self;\n");
      Printf(f->code, "for (ii = 0; (ii < %d) && (ii < argc); ii++) {\n", add_self ? maxargs - 1 : maxargs);
      Printf(f->code, "argv[ii%s] = PyTuple_GET_ITEM(args,ii);\n", add_self ? " + 1" : "");
      Append(f->code, "}\n");
      if (add_self)
	Append(f->code, "argc++;\n");
    } else {
      String *iname = Getattr(n, "sym:name");
      Printf(f->code, "if (!(argc = SWIG_Python_UnpackTuple(args,\"%s\",0,%d,argv%s))) SWIG_fail;\n", iname, maxargs, add_self ? "+1" : "");
      if (add_self)
	Append(f->code, "argv[0] = self;\n");
      else
	Append(f->code, "--argc;\n");
    }

    Replaceall(dispatch, "$args", "self, args");

    Printv(f->code, dispatch, "\n", NIL);

    if (GetFlag(n, "feature:python:maybecall")) {
      Append(f->code, "fail:\n");
      Append(f->code, "Py_INCREF(Py_NotImplemented);\n");
      Append(f->code, "return Py_NotImplemented;\n");
    } else {
      Node *sibl = n;
      while (Getattr(sibl, "sym:previousSibling"))
	sibl = Getattr(sibl, "sym:previousSibling");	// go all the way up
      String *protoTypes = NewString("");
      do {
	String *fulldecl = Swig_name_decl(sibl);
	Printf(protoTypes, "\n\"    %s\\n\"", fulldecl);
	Delete(fulldecl);
      } while ((sibl = Getattr(sibl, "sym:nextSibling")));
      Append(f->code, "fail:\n");
      Printf(f->code, "SWIG_SetErrorMsg(PyExc_NotImplementedError,"
	     "\"Wrong number or type of arguments for overloaded function '%s'.\\n\"" "\n\"  Possible C/C++ prototypes are:\\n\"%s);\n", symname, protoTypes);
      Printf(f->code, "return %s;\n", builtin_ctor ? "-1" : "0");
      Delete(protoTypes);
    }
    Printv(f->code, "}\n", NIL);
    Wrapper_print(f, f_wrappers);
    Node *p = Getattr(n, "sym:previousSibling");
    if (!builtin_self)
      add_method(symname, wname, 0, p);

    /* Create a shadow for this function (if enabled and not in a member function) */
    if (!builtin && (shadow) && (!(shadow & PYSHADOW_MEMBER))) {
      emitFunctionShadowHelper(n, in_class ? f_shadow_stubs : f_shadow, symname, 0);
    }
    DelWrapper(f);
    Delete(dispatch);
    Delete(tmp);
    Delete(wname);
  }

  /* ------------------------------------------------------------
   * functionWrapper()
   * ------------------------------------------------------------ */

  /*
    A note about argument marshalling with built-in types.
    There are three distinct cases for member (non-static) methods:

    1) An ordinary member function.  In this case, the first param in
    the param list is 'this'.  For builtin types, 'this' is taken from
    the first argument to the wrapper (usually called 'self); it's not
    extracted from the second argument (which is usually a tuple).

    2) A constructor for a non-director class.  In this case, the
    param list doesn't contain an entry for 'this', but the first ('self')
    argument to the wrapper *does* contain the newly-allocated,
    uninitialized object.

    3) A constructor for a director class.  In this case, the param
    list contains a 'self' param, which comes from the first argument
    to the wrapper function.
  */

  const char *get_implicitconv_flag(Node *klass) {
    int conv = 0;
    if (klass && GetFlag(klass, "feature:implicitconv")) {
      conv = 1;
    }
    return conv ? "SWIG_POINTER_IMPLICIT_CONV" : "0";
  }


  virtual int functionWrapper(Node *n) {

    String *name = Getattr(n, "name");
    String *iname = Getattr(n, "sym:name");
    SwigType *d = Getattr(n, "type");
    ParmList *l = Getattr(n, "parms");
    Node *parent = Swig_methodclass(n);

    int director_method = 0;

    Parm *p;
    int i;
    char source[64];
    Wrapper *f;
    String *self_parse;
    String *parse_args;
    String *arglist;
    String *get_pointers;
    String *cleanup;
    String *outarg;
    String *kwargs;
    String *tm;
    String *overname = 0;

    int num_required;
    int num_arguments;
    int num_fixed_arguments;
    int tuple_required;
    int tuple_arguments;
    int varargs = 0;
    int allow_kwargs = check_kwargs(n);

    String *nodeType = Getattr(n, "nodeType");
    int constructor = (!Cmp(nodeType, "constructor"));
    int destructor = (!Cmp(nodeType, "destructor"));
    String *storage = Getattr(n, "storage");
    /* Only the first constructor is handled as init method. Others
       constructor can be emitted via %rename */
    int handled_as_init = 0;
    if (!have_constructor && (constructor || Getattr(n, "handled_as_constructor"))
	&& ((shadow & PYSHADOW_MEMBER))) {
      String *nname = Getattr(n, "sym:name");
      String *sname = Getattr(getCurrentClass(), "sym:name");
      String *cname = Swig_name_construct(NSPACE_TODO, sname);
      handled_as_init = (Strcmp(nname, sname) == 0) || (Strcmp(nname, cname) == 0);
      Delete(cname);
    }
    bool builtin_self = builtin && in_class && (constructor || (l && Getattr(l, "self")));
    bool builtin_ctor = false;
    if (builtin_self && constructor) {
      String *class_mname = Getattr(getCurrentClass(), "sym:name");
      String *mrename = Swig_name_construct(getNSpace(), class_mname);
      if (Cmp(iname, mrename))
	builtin_self = false;
      else
	builtin_ctor = true;
    }
    bool director_class = (getCurrentClass() && Swig_directorclass(getCurrentClass()));
    bool add_self = builtin_self && (!builtin_ctor || director_class);
    bool builtin_getter = (builtin && GetFlag(n, "memberget"));
    bool builtin_setter = (builtin && GetFlag(n, "memberset") && !builtin_getter);
    bool over_varargs = false;
    char const *self_param = builtin ? "self" : "SWIGUNUSEDPARM(self)";
    char const *wrap_return = builtin_ctor ? "int " : "PyObject *";
    String *linkage = NewString("SWIGINTERN ");
    String *wrapper_name = Swig_name_wrapper(iname);

    if (Getattr(n, "sym:overloaded")) {
      overname = Getattr(n, "sym:overname");
    } else {
      if (!addSymbol(iname, n))
	return SWIG_ERROR;
    }

    f = NewWrapper();
    self_parse = NewString("");
    parse_args = NewString("");
    arglist = NewString("");
    get_pointers = NewString("");
    cleanup = NewString("");
    outarg = NewString("");
    kwargs = NewString("");

    int allow_thread = threads_enable(n);

    Wrapper_add_local(f, "resultobj", "PyObject *resultobj = 0");

    // Emit all of the local variables for holding arguments.
    emit_parameter_variables(l, f);

    /* Attach the standard typemaps */
    emit_attach_parmmaps(l, f);
    Setattr(n, "wrap:parms", l);
    /* Get number of required and total arguments */
    tuple_arguments = num_arguments = emit_num_arguments(l);
    tuple_required = num_required = emit_num_required(l);
    if (add_self) {
      --tuple_arguments;
      --tuple_required;
    }
    num_fixed_arguments = tuple_required;
    if (((num_arguments == 0) && (num_required == 0)) || ((num_arguments == 1) && (num_required == 1) && Getattr(l, "self")))
      allow_kwargs = 0;
    varargs = emit_isvarargs(l);

    String *wname = Copy(wrapper_name);
    if (overname) {
      Append(wname, overname);
    }

    if (!allow_kwargs || overname) {
      if (!varargs) {
	Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", PyObject *args) {", NIL);
      } else {
	Printv(f->def, linkage, wrap_return, wname, "__varargs__", "(PyObject *", self_param, ", PyObject *args, PyObject *varargs) {", NIL);
      }
      if (allow_kwargs) {
	Swig_warning(WARN_LANG_OVERLOAD_KEYWORD, input_file, line_number, "Can't use keyword arguments with overloaded functions (%s).\n", Swig_name_decl(n));
	allow_kwargs = 0;
      }
    } else {
      if (varargs) {
	Swig_warning(WARN_LANG_VARARGS_KEYWORD, input_file, line_number, "Can't wrap varargs with keyword arguments enabled\n");
	varargs = 0;
      }
      Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", PyObject *args, PyObject *kwargs) {", NIL);
    }
    if (!builtin || !in_class || tuple_arguments > 0) {
      if (!allow_kwargs) {
	Append(parse_args, "    if (!PyArg_ParseTuple(args,(char *)\"");
      } else {
	Append(parse_args, "    if (!PyArg_ParseTupleAndKeywords(args,kwargs,(char *)\"");
	Append(arglist, ",kwnames");
      }
    }

    if (overname) {
      String *over_varargs_attr = Getattr(n, "python:overvarargs");
      if (!over_varargs_attr) {
	for (Node *sibling = n; sibling; sibling = Getattr(sibling, "sym:nextSibling")) {
	  if (emit_isvarargs(Getattr(sibling, "parms"))) {
	    over_varargs = true;
	    break;
	  }
	}
	over_varargs_attr = NewString(over_varargs ? "1" : "0");
	for (Node *sibling = n; sibling; sibling = Getattr(sibling, "sym:nextSibling"))
	  Setattr(sibling, "python:overvarargs", over_varargs_attr);
      }
      if (Strcmp(over_varargs_attr, "0") != 0)
	over_varargs = true;
    }

    int funpack = modernargs && fastunpack && !varargs && !over_varargs && !allow_kwargs;
    int noargs = funpack && (tuple_required == 0 && tuple_arguments == 0);
    int onearg = funpack && (tuple_required == 1 && tuple_arguments == 1);

    if (builtin && funpack && !overname && !builtin_ctor && 
      !(GetFlag(n, "feature:compactdefaultargs") && (tuple_arguments > tuple_required || varargs))) {
      String *argattr = NewStringf("%d", tuple_arguments);
      Setattr(n, "python:argcount", argattr);
      Delete(argattr);
    }

    /* Generate code for argument marshalling */
    if (funpack) {
      if (overname) {
	if (aliasobj0) {
	  Append(f->code, "#define obj0 (swig_obj[0])\n");
	}
      } else if (num_arguments) {
	sprintf(source, "PyObject *swig_obj[%d]", num_arguments);
	Wrapper_add_localv(f, "swig_obj", source, NIL);
	if (aliasobj0) {
	  Append(f->code, "#define obj0 (swig_obj[0])\n");
	}
      }
    }


    if (constructor && num_arguments == 1 && num_required == 1) {
      if (Cmp(storage, "explicit") == 0) {
	if (GetFlag(parent, "feature:implicitconv")) {
	  String *desc = NewStringf("SWIGTYPE%s", SwigType_manglestr(Getattr(n, "type")));
	  Printf(f->code, "if (SWIG_CheckImplicit(%s)) SWIG_fail;\n", desc);
	  Delete(desc);
	}
      }
    }

    if (builtin_ctor && checkAttribute(n, "access", "protected")) {
      String *tmp_none_comparison = Copy(none_comparison);
      Replaceall(tmp_none_comparison, "$arg", "self");
      Printf(self_parse, "if (!(%s)) {\n", tmp_none_comparison);
      Printv(self_parse, "  SWIG_SetErrorMsg(PyExc_RuntimeError, \"accessing abstract class or protected constructor\");\n  SWIG_fail;\n}\n", NIL);
      Delete(tmp_none_comparison);
    }

    int use_parse = 0;
    Append(kwargs, "{");
    for (i = 0, p = l; i < num_arguments; i++) {
      while (checkAttribute(p, "tmap:in:numinputs", "0")) {
	p = Getattr(p, "tmap:in:next");
      }

      SwigType *pt = Getattr(p, "type");
      String *ln = Getattr(p, "lname");
      bool parse_from_tuple = (i > 0 || !add_self);
      if (SwigType_type(pt) == T_VARARGS) {
	parse_from_tuple = false;
	num_fixed_arguments -= atoi(Char(Getattr(p, "tmap:in:numinputs")));
      }
      if (!parse_from_tuple)
	sprintf(source, "self");
      else if (funpack)
	sprintf(source, "swig_obj[%d]", add_self && !overname ? i - 1 : i);
      else
	sprintf(source, "obj%d", builtin_ctor ? i + 1 : i);

      if (parse_from_tuple) {
	Putc(',', arglist);
	if (i == num_required)
	  Putc('|', parse_args);	/* Optional argument separator */
      }

      /* Keyword argument handling */
      if (allow_kwargs && parse_from_tuple) {
	String *name = makeParameterName(n, p, i + 1);
	Printf(kwargs, "(char *) \"%s\",", name);
	Delete(name);
      }

      /* Look for an input typemap */
      if ((tm = Getattr(p, "tmap:in"))) {
	String *parse = Getattr(p, "tmap:in:parse");
	if (!parse) {
	  if (builtin_self) {
	    Replaceall(tm, "$self", "self");
	  } else if (funpack) {
	    Replaceall(tm, "$self", "swig_obj[0]");
	  } else {
	    Replaceall(tm, "$self", "obj0");
	  }
	  Replaceall(tm, "$source", source);
	  Replaceall(tm, "$target", ln);
	  Replaceall(tm, "$input", source);
	  Setattr(p, "emit:input", source);	/* Save the location of the object */

	  if (Getattr(p, "wrap:disown") || (Getattr(p, "tmap:in:disown"))) {
	    Replaceall(tm, "$disown", "SWIG_POINTER_DISOWN");
	  } else {
	    Replaceall(tm, "$disown", "0");
	  }

	  if (Getattr(p, "tmap:in:implicitconv")) {
	    const char *convflag = "0";
	    if (!Getattr(p, "hidden")) {
	      SwigType *ptype = Getattr(p, "type");
	      convflag = get_implicitconv_flag(classLookup(ptype));
	    }
	    Replaceall(tm, "$implicitconv", convflag);
	    Setattr(p, "implicitconv", convflag);
	  }

	  if (parse_from_tuple)
	    Putc('O', parse_args);
	  if (!funpack && parse_from_tuple) {
	    Wrapper_add_localv(f, source, "PyObject *", source, "= 0", NIL);
	    Printf(arglist, "&%s", source);
	  }
	  if (i >= num_required)
	    Printv(get_pointers, "if (", source, ") {\n", NIL);
	  Printv(get_pointers, tm, "\n", NIL);
	  if (i >= num_required)
	    Printv(get_pointers, "}\n", NIL);

	} else {
	  use_parse = 1;
	  Append(parse_args, parse);
	  if (parse_from_tuple)
	    Printf(arglist, "&%s", ln);
	}
	p = Getattr(p, "tmap:in:next");
	continue;
      } else {
	Swig_warning(WARN_TYPEMAP_IN_UNDEF, input_file, line_number, "Unable to use type %s as a function argument.\n", SwigType_str(pt, 0));
	break;
      }
    }

    /* finish argument marshalling */
    Append(kwargs, " NULL }");
    if (allow_kwargs) {
      Printv(f->locals, "  char *  kwnames[] = ", kwargs, ";\n", NIL);
    }

    if (builtin && !funpack && in_class && tuple_arguments == 0) {
      Printf(parse_args, "    if (args && PyTuple_Check(args) && PyTuple_GET_SIZE(args) > 0) SWIG_exception_fail(SWIG_TypeError, \"%s takes no arguments\");\n", iname);
    } else if (use_parse || allow_kwargs || !modernargs) {
      Printf(parse_args, ":%s\"", iname);
      Printv(parse_args, arglist, ")) SWIG_fail;\n", NIL);
      funpack = 0;
    } else {
      Clear(parse_args);
      if (funpack) {
	Clear(f->def);
	if (overname) {
	  if (noargs) {
	    Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", int nobjs, PyObject **SWIGUNUSEDPARM(swig_obj)) {", NIL);
	  } else {
	    Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", int nobjs, PyObject **swig_obj) {", NIL);
	  }
	  Printf(parse_args, "if ((nobjs < %d) || (nobjs > %d)) SWIG_fail;\n", num_required, num_arguments);
	} else {
	  if (noargs) {
	    Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", PyObject *args) {", NIL);
	  } else {
	    Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", PyObject *args) {", NIL);
	  }
	  if (onearg && !builtin_ctor) {
	    Printf(parse_args, "if (!args) SWIG_fail;\n");
	    Append(parse_args, "swig_obj[0] = args;\n");
	  } else if (!noargs) {
	    Printf(parse_args, "if (!SWIG_Python_UnpackTuple(args,\"%s\",%d,%d,swig_obj)) SWIG_fail;\n", iname, num_fixed_arguments, tuple_arguments);
	  } else if (noargs) {
	    Printf(parse_args, "if (!SWIG_Python_UnpackTuple(args,\"%s\",%d,%d,0)) SWIG_fail;\n", iname, num_fixed_arguments, tuple_arguments);
	  }
	}
      } else {
	Printf(parse_args, "if(!PyArg_UnpackTuple(args,(char *)\"%s\",%d,%d", iname, num_fixed_arguments, tuple_arguments);
	Printv(parse_args, arglist, ")) SWIG_fail;\n", NIL);
      }
    }

    /* Now piece together the first part of the wrapper function */
    Printv(f->code, self_parse, parse_args, get_pointers, NIL);

    /* Check for trailing varargs */
    if (varargs) {
      if (p && (tm = Getattr(p, "tmap:in"))) {
	Replaceall(tm, "$input", "varargs");
	Printv(f->code, tm, "\n", NIL);
      }
    }

    /* Insert constraint checking code */
    for (p = l; p;) {
      if ((tm = Getattr(p, "tmap:check"))) {
	Replaceall(tm, "$target", Getattr(p, "lname"));
	Printv(f->code, tm, "\n", NIL);
	p = Getattr(p, "tmap:check:next");
      } else {
	p = nextSibling(p);
      }
    }

    /* Insert cleanup code */
    for (p = l; p;) {
      if (!Getattr(p, "tmap:in:parse") && (tm = Getattr(p, "tmap:freearg"))) {
	if (Getattr(p, "tmap:freearg:implicitconv")) {
	  const char *convflag = "0";
	  if (!Getattr(p, "hidden")) {
	    SwigType *ptype = Getattr(p, "type");
	    convflag = get_implicitconv_flag(classLookup(ptype));
	  }
	  if (strcmp(convflag, "0") == 0) {
	    tm = 0;
	  }
	}
	if (tm && (Len(tm) != 0)) {
	  Replaceall(tm, "$source", Getattr(p, "lname"));
	  Printv(cleanup, tm, "\n", NIL);
	}
	p = Getattr(p, "tmap:freearg:next");
      } else {
	p = nextSibling(p);
      }
    }

    /* Insert argument output code */
    for (p = l; p;) {
      if ((tm = Getattr(p, "tmap:argout"))) {
	Replaceall(tm, "$source", Getattr(p, "lname"));
	Replaceall(tm, "$target", "resultobj");
	Replaceall(tm, "$arg", Getattr(p, "emit:input"));
	Replaceall(tm, "$input", Getattr(p, "emit:input"));
	Printv(outarg, tm, "\n", NIL);
	p = Getattr(p, "tmap:argout:next");
      } else {
	p = nextSibling(p);
      }
    }

    /* if the object is a director, and the method call originated from its
     * underlying python object, resolve the call by going up the c++ 
     * inheritance chain.  otherwise try to resolve the method in python.  
     * without this check an infinite loop is set up between the director and 
     * shadow class method calls.
     */

    // NOTE: this code should only be inserted if this class is the
    // base class of a director class.  however, in general we haven't
    // yet analyzed all classes derived from this one to see if they are
    // directors.  furthermore, this class may be used as the base of
    // a director class defined in a completely different module at a
    // later time, so this test must be included whether or not directorbase
    // is true.  we do skip this code if directors have not been enabled
    // at the command line to preserve source-level compatibility with
    // non-polymorphic swig.  also, if this wrapper is for a smart-pointer
    // method, there is no need to perform the test since the calling object
    // (the smart-pointer) and the director object (the "pointee") are
    // distinct.

    director_method = is_member_director(n) && !is_smart_pointer() && !destructor;
    if (director_method) {
      Wrapper_add_local(f, "director", "Swig::Director *director = 0");
      Append(f->code, "director = SWIG_DIRECTOR_CAST(arg1);\n");
      if (dirprot_mode() && !is_public(n)) {
	Printf(f->code, "if (!director || !(director->swig_get_inner(\"%s\"))) {\n", name);
	Printf(f->code, "SWIG_SetErrorMsg(PyExc_RuntimeError,\"accessing protected member %s\");\n", name);
	Append(f->code, "SWIG_fail;\n");
	Append(f->code, "}\n");
      }
      Wrapper_add_local(f, "upcall", "bool upcall = false");
      if (funpack) {
	const char *self_parm = builtin_self ? "self" : "swig_obj[0]";
	Printf(f->code, "upcall = (director && (director->swig_get_self()==%s));\n", self_parm);
      } else {
	const char *self_parm = builtin_self ? "self" : "obj0";
	Printf(f->code, "upcall = (director && (director->swig_get_self()==%s));\n", self_parm);
      }
    }

    /* Emit the function call */
    if (director_method) {
      Append(f->code, "try {\n");
    } else {
      if (allow_thread) {
	String *preaction = NewString("");
	thread_begin_allow(n, preaction);
	Setattr(n, "wrap:preaction", preaction);

	String *postaction = NewString("");
	thread_end_allow(n, postaction);
	Setattr(n, "wrap:postaction", postaction);
      }
    }

    Setattr(n, "wrap:name", wname);

    Swig_director_emit_dynamic_cast(n, f);
    String *actioncode = emit_action(n);

    if (director_method) {
      Append(actioncode, "} catch (Swig::DirectorException&) {\n");
      Append(actioncode, "  SWIG_fail;\n");
      Append(actioncode, "}\n");
    }

    /* This part below still needs cleanup */

    /* Return the function value */
    tm = Swig_typemap_lookup_out("out", n, Swig_cresult_name(), f, actioncode);

    if (tm) {
      if (builtin_self) {
	Replaceall(tm, "$self", "self");
      } else if (funpack) {
	Replaceall(tm, "$self", "swig_obj[0]");
      } else {
	Replaceall(tm, "$self", "obj0");
      }
      Replaceall(tm, "$source", Swig_cresult_name());
      Replaceall(tm, "$target", "resultobj");
      Replaceall(tm, "$result", "resultobj");
      if (builtin_ctor) {
	Replaceall(tm, "$owner", "SWIG_BUILTIN_INIT");
      } else if (handled_as_init) {
	Replaceall(tm, "$owner", "SWIG_POINTER_NEW");
      } else {
	if (GetFlag(n, "feature:new")) {
	  Replaceall(tm, "$owner", "SWIG_POINTER_OWN");
	} else {
	  Replaceall(tm, "$owner", "0");
	}
      }
      // FIXME: this will not try to unwrap directors returned as non-director
      //        base class pointers!

      /* New addition to unwrap director return values so that the original
       * python object is returned instead. 
       */
#if 1
      int unwrap = 0;
      String *decl = Getattr(n, "decl");
      int is_pointer = SwigType_ispointer_return(decl);
      int is_reference = SwigType_isreference_return(decl);
      if (is_pointer || is_reference) {
	String *type = Getattr(n, "type");
	//Node *classNode = Swig_methodclass(n);
	//Node *module = Getattr(classNode, "module");
	Node *module = Getattr(parent, "module");
	Node *target = Swig_directormap(module, type);
	if (target)
	  unwrap = 1;
      }
      if (unwrap) {
	Wrapper_add_local(f, "director", "Swig::Director *director = 0");
	Printf(f->code, "director = SWIG_DIRECTOR_CAST(%s);\n", Swig_cresult_name());
	Append(f->code, "if (director) {\n");
	Append(f->code, "  resultobj = director->swig_get_self();\n");
	Append(f->code, "  Py_INCREF(resultobj);\n");
	Append(f->code, "} else {\n");
	Printf(f->code, "%s\n", tm);
	Append(f->code, "}\n");
      } else {
	Printf(f->code, "%s\n", tm);
      }
#else
      Printf(f->code, "%s\n", tm);
#endif
      Delete(tm);
    } else {
      Swig_warning(WARN_TYPEMAP_OUT_UNDEF, input_file, line_number, "Unable to use return type %s in function %s.\n", SwigType_str(d, 0), name);
    }
    emit_return_variable(n, d, f);

    /* Output argument output code */
    Printv(f->code, outarg, NIL);

    /* Output cleanup code */
    int need_cleanup = Len(cleanup) != 0;
    if (need_cleanup) {
      Printv(f->code, cleanup, NIL);
    }

    /* Look to see if there is any newfree cleanup code */
    if (GetFlag(n, "feature:new")) {
      if ((tm = Swig_typemap_lookup("newfree", n, Swig_cresult_name(), 0))) {
	Replaceall(tm, "$source", Swig_cresult_name());
	Printf(f->code, "%s\n", tm);
	Delete(tm);
      }
    }

    /* See if there is any return cleanup code */
    if ((tm = Swig_typemap_lookup("ret", n, Swig_cresult_name(), 0))) {
      Replaceall(tm, "$source", Swig_cresult_name());
      Printf(f->code, "%s\n", tm);
      Delete(tm);
    }

    if (director_method) {
      if ((tm = Swig_typemap_lookup("directorfree", n, Swig_cresult_name(), 0))) {
	Replaceall(tm, "$input", Swig_cresult_name());
	Replaceall(tm, "$result", "resultobj");
	Printf(f->code, "%s\n", tm);
	Delete(tm);
      }
    }

    if (builtin_ctor)
      Append(f->code, "    return resultobj == Py_None ? -1 : 0;\n");
    else
      Append(f->code, "    return resultobj;\n");

    /* Error handling code */

    Append(f->code, "fail:\n");
    if (need_cleanup) {
      Printv(f->code, cleanup, NIL);
    }
    if (builtin_ctor)
      Printv(f->code, "  return -1;\n", NIL);
    else
      Printv(f->code, "  return NULL;\n", NIL);


    if (funpack) {
      if (aliasobj0) {
	Append(f->code, "#if defined(obj0)\n");
	Append(f->code, "#undef obj0\n");
	Append(f->code, "#endif\n");
      }
    }


    Append(f->code, "}\n");

    /* Substitute the cleanup code */
    Replaceall(f->code, "$cleanup", cleanup);

    /* Substitute the function name */
    Replaceall(f->code, "$symname", iname);
    Replaceall(f->code, "$result", "resultobj");

    if (builtin_self) {
      Replaceall(f->code, "$self", "self");
    } else if (funpack) {
      Replaceall(f->code, "$self", "swig_obj[0]");
    } else {
      Replaceall(f->code, "$self", "obj0");
    }

    /* Dump the function out */
    Wrapper_print(f, f_wrappers);

    /* If varargs.  Need to emit a varargs stub */
    if (varargs) {
      DelWrapper(f);
      f = NewWrapper();
      if (funpack) {
	Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", int nobjs, PyObject **swig_obj) {", NIL);
      } else {
	Printv(f->def, linkage, wrap_return, wname, "(PyObject *", self_param, ", PyObject *args) {", NIL);
      }
      Wrapper_add_local(f, "resultobj", builtin_ctor ? "int resultobj" : "PyObject *resultobj");
      Wrapper_add_local(f, "varargs", "PyObject *varargs");
      Wrapper_add_local(f, "newargs", "PyObject *newargs");
      if (funpack) {
	Wrapper_add_local(f, "i", "int i");
	Printf(f->code, "newargs = PyTuple_New(%d);\n", num_fixed_arguments);
	Printf(f->code, "for (i = 0; i < %d; ++i) {\n", num_fixed_arguments);
	Printf(f->code, "  PyTuple_SET_ITEM(newargs, i, swig_obj[i]);\n");
	Printf(f->code, "  Py_XINCREF(swig_obj[i]);\n");
	Printf(f->code, "}\n");
	Printf(f->code, "varargs = PyTuple_New(nobjs > %d ? nobjs - %d : 0);\n", num_fixed_arguments, num_fixed_arguments);
	Printf(f->code, "for (i = 0; i < nobjs - %d; ++i) {\n", num_fixed_arguments);
	Printf(f->code, "  PyTuple_SET_ITEM(newargs, i, swig_obj[i + %d]);\n", num_fixed_arguments);
	Printf(f->code, "  Py_XINCREF(swig_obj[i + %d]);\n", num_fixed_arguments);
	Printf(f->code, "}\n");
      } else {
	Printf(f->code, "newargs = PyTuple_GetSlice(args,0,%d);\n", num_fixed_arguments);
	Printf(f->code, "varargs = PyTuple_GetSlice(args,%d,PyTuple_Size(args));\n", num_fixed_arguments);
      }
      Printf(f->code, "resultobj = %s__varargs__(%s,newargs,varargs);\n", wname, builtin ? "self" : "NULL");
      Append(f->code, "Py_XDECREF(newargs);\n");
      Append(f->code, "Py_XDECREF(varargs);\n");
      Append(f->code, "return resultobj;\n");
      Append(f->code, "}\n");
      Wrapper_print(f, f_wrappers);
    }

    /* Now register the function with the interpreter.   */
    if (!Getattr(n, "sym:overloaded")) {
      if (!builtin_self)
	add_method(iname, wname, allow_kwargs, n, funpack, num_required, num_arguments);

      /* Create a shadow for this function (if enabled and not in a member function) */
      if (!builtin && (shadow) && (!(shadow & PYSHADOW_MEMBER))) {
	emitFunctionShadowHelper(n, in_class ? f_shadow_stubs : f_shadow, iname, allow_kwargs);
      }
    } else {
      if (!Getattr(n, "sym:nextSibling")) {
	dispatchFunction(n, linkage, funpack, builtin_self, builtin_ctor, director_class);
      }
    }

    // Put this in tp_init of the PyTypeObject
    if (builtin_ctor) {
      if ((director_method || !is_private(n)) && !Getattr(class_members, iname)) {
	Setattr(class_members, iname, n);
	if (!builtin_tp_init)
	  builtin_tp_init = Swig_name_wrapper(iname);
      }
    }

    /* If this is a builtin type, create a PyGetSetDef entry for this member variable. */
    if (builtin) {
      const char *memname = "__dict__";
      Hash *h = Getattr(builtin_getset, memname);
      if (!h) {
        h = NewHash();
        Setattr(builtin_getset, memname, h);
        Delete(h);
      }
      Setattr(h, "getter", "SwigPyObject_get___dict__");
    }

    if (builtin_getter) {
      String *memname = Getattr(n, "membervariableHandler:sym:name");
      if (!memname)
	memname = iname;
      Hash *h = Getattr(builtin_getset, memname);
      if (!h) {
	h = NewHash();
	Setattr(builtin_getset, memname, h);
	Delete(h);
      }
      Setattr(h, "getter", wrapper_name);
      Delattr(n, "memberget");
    }
    if (builtin_setter) {
      String *memname = Getattr(n, "membervariableHandler:sym:name");
      if (!memname)
	memname = iname;
      Hash *h = Getattr(builtin_getset, memname);
      if (!h) {
	h = NewHash();
	Setattr(builtin_getset, memname, h);
	Delete(h);
      }
      Setattr(h, "setter", wrapper_name);
      Delattr(n, "memberset");
    }

    if (in_class && builtin) {
      /* Handle operator overloads for builtin types */
      String *slot = Getattr(n, "feature:python:slot");
      if (slot) {
	String *func_type = Getattr(n, "feature:python:slot:functype");
	String *closure_decl = getClosure(func_type, wrapper_name, overname ? 0 : funpack);
	String *feature_name = NewStringf("feature:python:%s", slot);
	String *closure_name = 0;
	if (closure_decl) {
	  closure_name = NewStringf("%s_%s_closure", wrapper_name, func_type);
	  if (!GetFlag(builtin_closures, closure_name))
	    Printf(builtin_closures_code, "%s /* defines %s */\n\n", closure_decl, closure_name);
	  SetFlag(builtin_closures, closure_name);
	  Delete(closure_decl);
	} else {
	  closure_name = Copy(wrapper_name);
	}
	if (func_type) {
	  String *s = NewStringf("(%s) %s", func_type, closure_name);
	  Delete(closure_name);
	  closure_name = s;
	}
	Setattr(parent, feature_name, closure_name);
	Delete(feature_name);
	Delete(closure_name);
      }

      /* Handle comparison operators for builtin types */
      String *compare = Getattr(n, "feature:python:compare");
      if (compare) {
	Hash *richcompare = Getattr(parent, "python:richcompare");
	assert(richcompare);
	Setattr(richcompare, compare, wrapper_name);
      }
    }

    Delete(self_parse);
    Delete(parse_args);
    Delete(linkage);
    Delete(arglist);
    Delete(get_pointers);
    Delete(cleanup);
    Delete(outarg);
    Delete(kwargs);
    Delete(wname);
    DelWrapper(f);
    Delete(wrapper_name);
    return SWIG_OK;
  }


  /* ------------------------------------------------------------
   * variableWrapper()
   * ------------------------------------------------------------ */

  virtual int variableWrapper(Node *n) {
    String *name = Getattr(n, "name");
    String *iname = Getattr(n, "sym:name");
    SwigType *t = Getattr(n, "type");

    static int have_globals = 0;
    String *tm;
    Wrapper *getf, *setf;

    if (!addSymbol(iname, n))
      return SWIG_ERROR;

    getf = NewWrapper();
    setf = NewWrapper();

    /* If this is our first call, add the globals variable to the
       Python dictionary. */

    if (!have_globals) {
      Printf(f_init, "\t PyDict_SetItemString(md,(char *)\"%s\", SWIG_globals());\n", global_name);
      if (builtin)
	Printf(f_init, "\t SwigPyBuiltin_AddPublicSymbol(public_interface, \"%s\");\n", global_name);
      have_globals = 1;
      if (!builtin && (shadow) && (!(shadow & PYSHADOW_MEMBER))) {
	Printf(f_shadow_stubs, "%s = %s.%s\n", global_name, module, global_name);
      }
    }
    int assignable = is_assignable(n);

    if (!builtin && shadow && !assignable && !in_class)
      Printf(f_shadow_stubs, "%s = %s.%s\n", iname, global_name, iname);

    String *getname = Swig_name_get(NSPACE_TODO, iname);
    String *setname = Swig_name_set(NSPACE_TODO, iname);
    String *vargetname = NewStringf("Swig_var_%s", getname);
    String *varsetname = NewStringf("Swig_var_%s", setname);

    /* Create a function for setting the value of the variable */
    if (assignable) {
      Setattr(n, "wrap:name", varsetname);
      if (builtin && in_class) {
	String *set_wrapper = Swig_name_wrapper(setname);
	Setattr(n, "pybuiltin:setter", set_wrapper);
	Delete(set_wrapper);
      }
      Printf(setf->def, "SWIGINTERN int %s(PyObject *_val) {", varsetname);
      if ((tm = Swig_typemap_lookup("varin", n, name, 0))) {
	Replaceall(tm, "$source", "_val");
	Replaceall(tm, "$target", name);
	Replaceall(tm, "$input", "_val");
	if (Getattr(n, "tmap:varin:implicitconv")) {
	  Replaceall(tm, "$implicitconv", get_implicitconv_flag(n));
	}
	emit_action_code(n, setf->code, tm);
	Delete(tm);
      } else {
	Swig_warning(WARN_TYPEMAP_VARIN_UNDEF, input_file, line_number, "Unable to set variable of type %s.\n", SwigType_str(t, 0));
      }
      Printv(setf->code, "  return 0;\n", NULL);
      Append(setf->code, "fail:\n");
      Printv(setf->code, "  return 1;\n", NULL);
    } else {
      /* Is a readonly variable.  Issue an error */
      if (CPlusPlus) {
	Printf(setf->def, "SWIGINTERN int %s(PyObject *) {", varsetname);
      } else {
	Printf(setf->def, "SWIGINTERN int %s(PyObject *_val SWIGUNUSED) {", varsetname);
      }
      Printv(setf->code, "  SWIG_Error(SWIG_AttributeError,\"Variable ", iname, " is read-only.\");\n", "  return 1;\n", NIL);
    }

    Append(setf->code, "}\n");
    Wrapper_print(setf, f_wrappers);

    /* Create a function for getting the value of a variable */
    Setattr(n, "wrap:name", vargetname);
    if (builtin && in_class) {
      String *get_wrapper = Swig_name_wrapper(getname);
      Setattr(n, "pybuiltin:getter", get_wrapper);
      Delete(get_wrapper);
    }
    int addfail = 0;
    Printf(getf->def, "SWIGINTERN PyObject *%s(void) {", vargetname);
    Wrapper_add_local(getf, "pyobj", "PyObject *pyobj = 0");
    if (builtin) {
      Wrapper_add_local(getf, "self", "PyObject *self = 0");
      Append(getf->code, "  (void)self;\n");
    }
    if ((tm = Swig_typemap_lookup("varout", n, name, 0))) {
      Replaceall(tm, "$source", name);
      Replaceall(tm, "$target", "pyobj");
      Replaceall(tm, "$result", "pyobj");
      addfail = emit_action_code(n, getf->code, tm);
      Delete(tm);
    } else {
      Swig_warning(WARN_TYPEMAP_VAROUT_UNDEF, input_file, line_number, "Unable to read variable of type %s\n", SwigType_str(t, 0));
    }
    Append(getf->code, "  return pyobj;\n");
    if (addfail) {
      Append(getf->code, "fail:\n");
      Append(getf->code, "  return NULL;\n");
    }
    Append(getf->code, "}\n");

    Wrapper_print(getf, f_wrappers);

    /* Now add this to the variable linking mechanism */
    Printf(f_init, "\t SWIG_addvarlink(SWIG_globals(),(char *)\"%s\",%s, %s);\n", iname, vargetname, varsetname);
    if (builtin && shadow && !assignable && !in_class) {
      Printf(f_init, "\t PyDict_SetItemString(md, (char *)\"%s\", PyObject_GetAttrString(SWIG_globals(), \"%s\"));\n", iname, iname);
      Printf(f_init, "\t SwigPyBuiltin_AddPublicSymbol(public_interface, \"%s\");\n", iname);
    }
    Delete(vargetname);
    Delete(varsetname);
    Delete(getname);
    Delete(setname);
    DelWrapper(setf);
    DelWrapper(getf);
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * constantWrapper()
   * ------------------------------------------------------------ */

  /* Determine if the node requires the _swigconstant code to be generated */
  bool needs_swigconstant(Node *n) {
    SwigType *type = Getattr(n, "type");
    SwigType *qtype = SwigType_typedef_resolve_all(type);
    SwigType *uqtype = SwigType_strip_qualifiers(qtype);
    bool result = false;

    /* Note, that we need special handling for function pointers, as
     * SwigType_base(fptr) does not return the underlying pointer-to-function
     * type but the return-type of function. */
    if(!SwigType_isfunction(uqtype) && !SwigType_isfunctionpointer(uqtype)) {
      SwigType *basetype = SwigType_base(uqtype);
      result = SwigType_isclass(basetype) != 0;
      Delete(basetype);
    }

    Delete(qtype);
    Delete(uqtype);

    return result;
  }

  virtual int constantWrapper(Node *n) {
    String *name = Getattr(n, "name");
    String *iname = Getattr(n, "sym:name");
    SwigType *type = Getattr(n, "type");
    String *rawval = Getattr(n, "rawval");
    String *value = rawval ? rawval : Getattr(n, "value");
    String *tm;
    int have_tm = 0;
    int have_builtin_symname = 0;

    if (!addSymbol(iname, n))
      return SWIG_ERROR;

    /* Special hook for member pointer */
    if (SwigType_type(type) == T_MPOINTER) {
      String *wname = Swig_name_wrapper(iname);
      String *str = SwigType_str(type, wname);
      Printf(f_header, "static %s = %s;\n", str, value);
      Delete(str);
      value = wname;
    }

    if ((tm = Swig_typemap_lookup("consttab", n, name, 0))) {
      Replaceall(tm, "$source", value);
      Replaceall(tm, "$target", name);
      Replaceall(tm, "$value", value);
      Printf(const_code, "%s,\n", tm);
      Delete(tm);
      have_tm = 1;
    }


    if (builtin && in_class && Getattr(n, "pybuiltin:symname")) {
      have_builtin_symname = 1;
      Swig_require("builtin_constantWrapper", n, "*sym:name", "pybuiltin:symname", NIL);
      Setattr(n, "sym:name", Getattr(n, "pybuiltin:symname"));
    }

    if ((tm = Swig_typemap_lookup("constcode", n, name, 0))) {
      Replaceall(tm, "$source", value);
      Replaceall(tm, "$target", name);
      Replaceall(tm, "$value", value);
      if (needs_swigconstant(n) && !builtin && (shadow) && (!(shadow & PYSHADOW_MEMBER)) && (!in_class || !Getattr(n, "feature:python:callback"))) {
	// Generate `*_swigconstant()` method which registers the new constant.
	//
	// *_swigconstant methods are required for constants of class type.
	// Class types are registered in shadow file (see *_swigregister). The
	// instances of class must be created (registered) after the type is
	// registered, so we can't let SWIG_init() to register constants of
	// class type (the SWIG_init() is called before shadow classes are
	// defined and registered).
        Printf(f_wrappers, "SWIGINTERN PyObject *%s_swigconstant(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {\n", iname);
        Printf(f_wrappers, tab2 "PyObject *module;\n", tm);
        Printf(f_wrappers, tab2 "PyObject *d;\n");
	if (modernargs) {
	  if (fastunpack) {
	    Printf(f_wrappers, tab2 "if (!SWIG_Python_UnpackTuple(args,(char *)\"swigconstant\", 1, 1,&module)) return NULL;\n");
	  } else {
	    Printf(f_wrappers, tab2 "if (!PyArg_UnpackTuple(args,(char *)\"swigconstant\", 1, 1,&module)) return NULL;\n");
	  }
	} else {
	  Printf(f_wrappers, tab2 "if (!PyArg_ParseTuple(args,(char *)\"O:swigconstant\", &module)) return NULL;\n");
	}
        Printf(f_wrappers, tab2 "d = PyModule_GetDict(module);\n");
        Printf(f_wrappers, tab2 "if (!d) return NULL;\n");
        Printf(f_wrappers, tab2 "%s\n", tm);
        Printf(f_wrappers, tab2 "return SWIG_Py_Void();\n");
        Printf(f_wrappers, "}\n\n\n");

        // Register the method in SwigMethods array
	String *cname = NewStringf("%s_swigconstant", iname);
	add_method(cname, cname, 0);
	Delete(cname);
      } else {
        Printf(f_init, "%s\n", tm);
      }
      Delete(tm);
      have_tm = 1;
    }

    if (have_builtin_symname)
      Swig_restore(n);

    if (!have_tm) {
      Swig_warning(WARN_TYPEMAP_CONST_UNDEF, input_file, line_number, "Unsupported constant value.\n");
      return SWIG_NOWRAP;
    }

    if (!builtin && (shadow) && (!(shadow & PYSHADOW_MEMBER))) {
      if (!in_class) {
	if(needs_swigconstant(n)) {
	  Printv(f_shadow, "\n",NIL);
	  Printv(f_shadow, module, ".", iname, "_swigconstant(",module,")\n", NIL);
	}
	Printv(f_shadow, iname, " = ", module, ".", iname, "\n", NIL);
      } else {
	if (!(Getattr(n, "feature:python:callback"))) {
	  if(needs_swigconstant(n)) {
	    Printv(f_shadow_stubs, "\n",NIL);
	    Printv(f_shadow_stubs, module, ".", iname, "_swigconstant(", module, ")\n", NIL);
	  }
	  Printv(f_shadow_stubs, iname, " = ", module, ".", iname, "\n", NIL);
	}
      }
    }
    return SWIG_OK;
  }


  /* ------------------------------------------------------------ 
   * nativeWrapper()
   * ------------------------------------------------------------ */

  virtual int nativeWrapper(Node *n) {
    String *name = Getattr(n, "sym:name");
    String *wrapname = Getattr(n, "wrap:name");

    if (!addSymbol(wrapname, n))
      return SWIG_ERROR;

    add_method(name, wrapname, 0);
    if (!builtin && shadow) {
      Printv(f_shadow_stubs, name, " = ", module, ".", name, "\n", NIL);
    }
    return SWIG_OK;
  }


  /* ----------------------------------------------------------------------------
   * BEGIN C++ Director Class modifications
   * ------------------------------------------------------------------------- */

  /* C++/Python polymorphism demo code
   *
   * TODO
   *
   * Move some boilerplate code generation to Swig_...() functions.
   *
   */

  /* ---------------------------------------------------------------
   * classDirectorMethod()
   *
   * Emit a virtual director method to pass a method call on to the 
   * underlying Python object.
   * ** Moved down due to gcc-2.96 internal error **
   * --------------------------------------------------------------- */

  int classDirectorMethods(Node *n);

  int classDirectorMethod(Node *n, Node *parent, String *super);

  /* ------------------------------------------------------------
   * classDirectorConstructor()
   * ------------------------------------------------------------ */

  int classDirectorConstructor(Node *n) {
    Node *parent = Getattr(n, "parentNode");
    String *sub = NewString("");
    String *decl = Getattr(n, "decl");
    String *supername = Swig_class_name(parent);
    String *classname = NewString("");
    Printf(classname, "SwigDirector_%s", supername);

    /* insert self parameter */
    Parm *p;
    ParmList *superparms = Getattr(n, "parms");
    ParmList *parms = CopyParmList(superparms);
    String *type = NewString("PyObject");
    SwigType_add_pointer(type);
    p = NewParm(type, NewString("self"), n);
    set_nextSibling(p, parms);
    parms = p;

    if (!Getattr(n, "defaultargs")) {
      /* constructor */
      {
	Wrapper *w = NewWrapper();
	String *call;
	String *basetype = Getattr(parent, "classtype");
	String *target = Swig_method_decl(0, decl, classname, parms, 0, 0);
	call = Swig_csuperclass_call(0, basetype, superparms);
	Printf(w->def, "%s::%s: %s, Swig::Director(self) { \n", classname, target, call);
	Printf(w->def, "   SWIG_DIRECTOR_RGTR((%s *)this, this); \n", basetype);
	Append(w->def, "}\n");
	Delete(target);
	Wrapper_print(w, f_directors);
	Delete(call);
	DelWrapper(w);
      }

      /* constructor header */
      {
	String *target = Swig_method_decl(0, decl, classname, parms, 0, 1);
	Printf(f_directors_h, "    %s;\n", target);
	Delete(target);
      }
    }

    Delete(sub);
    Delete(classname);
    Delete(supername);
    Delete(parms);
    return Language::classDirectorConstructor(n);
  }

  /* ------------------------------------------------------------
   * classDirectorDefaultConstructor()
   * ------------------------------------------------------------ */

  int classDirectorDefaultConstructor(Node *n) {
    String *classname = Swig_class_name(n);
    {
      Node *parent = Swig_methodclass(n);
      String *basetype = Getattr(parent, "classtype");
      Wrapper *w = NewWrapper();
      Printf(w->def, "SwigDirector_%s::SwigDirector_%s(PyObject *self) : Swig::Director(self) { \n", classname, classname);
      Printf(w->def, "   SWIG_DIRECTOR_RGTR((%s *)this, this); \n", basetype);
      Append(w->def, "}\n");
      Wrapper_print(w, f_directors);
      DelWrapper(w);
    }
    Printf(f_directors_h, "    SwigDirector_%s(PyObject *self);\n", classname);
    Delete(classname);
    return Language::classDirectorDefaultConstructor(n);
  }


  /* ------------------------------------------------------------
   * classDirectorInit()
   * ------------------------------------------------------------ */

  int classDirectorInit(Node *n) {
    String *declaration = Swig_director_declaration(n);
    Printf(f_directors_h, "\n");
    Printf(f_directors_h, "%s\n", declaration);
    Printf(f_directors_h, "public:\n");
    Delete(declaration);
    return Language::classDirectorInit(n);
  }

  /* ------------------------------------------------------------
   * classDirectorEnd()
   * ------------------------------------------------------------ */

  int classDirectorEnd(Node *n) {
    String *classname = Swig_class_name(n);

    if (dirprot_mode()) {
      /*
         This implementation uses a std::map<std::string,int>.

         It should be possible to rewrite it using a more elegant way,
         like copying the Java approach for the 'override' array.

         But for now, this seems to be the least intrusive way.
       */
      Printf(f_directors_h, "\n");
      Printf(f_directors_h, "/* Internal director utilities */\n");
      Printf(f_directors_h, "public:\n");
      Printf(f_directors_h, "    bool swig_get_inner(const char *swig_protected_method_name) const {\n");
      Printf(f_directors_h, "      std::map<std::string, bool>::const_iterator iv = swig_inner.find(swig_protected_method_name);\n");
      Printf(f_directors_h, "      return (iv != swig_inner.end() ? iv->second : false);\n");
      Printf(f_directors_h, "    }\n");

      Printf(f_directors_h, "    void swig_set_inner(const char *swig_protected_method_name, bool swig_val) const {\n");
      Printf(f_directors_h, "      swig_inner[swig_protected_method_name] = swig_val;\n");
      Printf(f_directors_h, "    }\n");
      Printf(f_directors_h, "private:\n");
      Printf(f_directors_h, "    mutable std::map<std::string, bool> swig_inner;\n");

    }
    if (director_method_index) {
      Printf(f_directors_h, "\n");
      Printf(f_directors_h, "#if defined(SWIG_PYTHON_DIRECTOR_VTABLE)\n");
      Printf(f_directors_h, "/* VTable implementation */\n");
      Printf(f_directors_h, "    PyObject *swig_get_method(size_t method_index, const char *method_name) const {\n");
      Printf(f_directors_h, "      PyObject *method = vtable[method_index];\n");
      Printf(f_directors_h, "      if (!method) {\n");
      Printf(f_directors_h, "        swig::SwigVar_PyObject name = SWIG_Python_str_FromChar(method_name);\n");
      Printf(f_directors_h, "        method = PyObject_GetAttr(swig_get_self(), name);\n");
      Printf(f_directors_h, "        if (!method) {\n");
      Printf(f_directors_h, "          std::string msg = \"Method in class %s doesn't exist, undefined \";\n", classname);
      Printf(f_directors_h, "          msg += method_name;\n");
      Printf(f_directors_h, "          Swig::DirectorMethodException::raise(msg.c_str());\n");
      Printf(f_directors_h, "        }\n");
      Printf(f_directors_h, "        vtable[method_index] = method;\n");
      Printf(f_directors_h, "      }\n");
      Printf(f_directors_h, "      return method;\n");
      Printf(f_directors_h, "    }\n");
      Printf(f_directors_h, "private:\n");
      Printf(f_directors_h, "    mutable swig::SwigVar_PyObject vtable[%d];\n", director_method_index);
      Printf(f_directors_h, "#endif\n\n");
    }

    Printf(f_directors_h, "};\n\n");
    return Language::classDirectorEnd(n);
  }


  /* ------------------------------------------------------------
   * classDirectorDisown()
   * ------------------------------------------------------------ */

  int classDirectorDisown(Node *n) {
    int result;
    int oldshadow = shadow;
    /* disable shadowing */
    if (shadow)
      shadow = shadow | PYSHADOW_MEMBER;
    result = Language::classDirectorDisown(n);
    shadow = oldshadow;
    if (shadow) {
      if (builtin) {
	String *rname = SwigType_namestr(real_classname);
	Printf(builtin_methods, "  { \"__disown__\", (PyCFunction) Swig::Director::swig_pyobj_disown< %s >, METH_NOARGS, \"\" },\n", rname);
	Delete(rname);
      } else {
	String *symname = Getattr(n, "sym:name");
	String *mrename = Swig_name_disown(NSPACE_TODO, symname);	//Getattr(n, "name"));
	Printv(f_shadow, tab4, "def __disown__(self):\n", NIL);
#ifdef USE_THISOWN
	Printv(f_shadow, tab8, "self.thisown = 0\n", NIL);
#else
	Printv(f_shadow, tab8, "self.this.disown()\n", NIL);
#endif
	Printv(f_shadow, tab8, module, ".", mrename, "(self)\n", NIL);
	Printv(f_shadow, tab8, "return weakref_proxy(self)\n", NIL);
	Delete(mrename);
      }
    }
    return result;
  }

  /* ----------------------------------------------------------------------------
   * END of C++ Director Class modifications
   * ------------------------------------------------------------------------- */


  /* ------------------------------------------------------------
   * classDeclaration()
   * ------------------------------------------------------------ */

  virtual int classDeclaration(Node *n) {
    if (shadow && !Getattr(n, "feature:onlychildren")) {
      Node *mod = Getattr(n, "module");
      if (mod) {
	String *modname = Getattr(mod, "name");
	Node *options = Getattr(mod, "options");
	String *pkg = options ? Getattr(options, "package") : 0;
	String *sym = Getattr(n, "sym:name");
	String *importname = import_name_string(package, mainmodule, pkg, modname, sym);
	Setattr(n, "python:proxy", importname);
	Delete(importname);
      }
    }
    int result = Language::classDeclaration(n);
    return result;
  }

  /* ------------------------------------------------------------
   * classHandler()
   * ------------------------------------------------------------ */

  String *add_explicit_scope(String *s) {
    if (!Strstr(s, "::")) {
      String *ss = NewStringf("::%s", s);
      Delete(s);
      s = ss;
    }
    return s;
  }

  void builtin_pre_decl(Node *n) {
    String *name = Getattr(n, "name");
    String *rname = add_explicit_scope(SwigType_namestr(name));
    String *mname = SwigType_manglestr(rname);

    Printf(f_init, "\n/* type '%s' */\n", rname);
    Printf(f_init, "    builtin_pytype = (PyTypeObject *)&SwigPyBuiltin_%s_type;\n", mname);
    Printf(f_init, "    builtin_pytype->tp_dict = d = PyDict_New();\n");

    Delete(rname);
    Delete(mname);
  }

  void builtin_post_decl(File *f, Node *n) {
    String *name = Getattr(n, "name");
    String *pname = Copy(name);
    SwigType_add_pointer(pname);
    String *symname = Getattr(n, "sym:name");
    String *rname = add_explicit_scope(SwigType_namestr(name));
    String *mname = SwigType_manglestr(rname);
    String *pmname = SwigType_manglestr(pname);
    String *templ = NewStringf("SwigPyBuiltin_%s", mname);
    int funpack = modernargs && fastunpack;
    static String *tp_new = NewString("PyType_GenericNew");

    Printv(f_init, "  SwigPyBuiltin_SetMetaType(builtin_pytype, metatype);\n", NIL);

    // We can’t statically initialize a structure member with a function defined in another C module
    // So this is done in the initialization function instead, see https://docs.python.org/2/extending/newtypes.html
    Printf(f_init, "  builtin_pytype->tp_new = %s;\n", getSlot(n, "feature:python:tp_new", tp_new));

    Printv(f_init, "  builtin_base_count = 0;\n", NIL);
    List *baselist = Getattr(n, "bases");
    if (baselist) {
      int base_count = 0;
      for (Iterator b = First(baselist); b.item; b = Next(b)) {
	String *bname = Getattr(b.item, "name");
	if (!bname || GetFlag(b.item, "feature:ignore"))
	  continue;
	base_count++;
	String *base_name = Copy(bname);
	SwigType_add_pointer(base_name);
	String *base_mname = SwigType_manglestr(base_name);
	Printf(f_init, "  builtin_basetype = SWIG_MangledTypeQuery(\"%s\");\n", base_mname);
	Printv(f_init, "  if (builtin_basetype && builtin_basetype->clientdata && ((SwigPyClientData *) builtin_basetype->clientdata)->pytype) {\n", NIL);
	Printv(f_init, "    builtin_bases[builtin_base_count++] = ((SwigPyClientData *) builtin_basetype->clientdata)->pytype;\n", NIL);
	Printv(f_init, "  } else {\n", NIL);
	Printf(f_init, "    PyErr_SetString(PyExc_TypeError, \"Could not create type '%s' as base '%s' has not been initialized.\\n\");\n", symname, bname);
	Printv(f_init, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
	Printv(f_init, "      return NULL;\n", NIL);
	Printv(f_init, "#else\n", NIL);
	Printv(f_init, "      return;\n", NIL);
	Printv(f_init, "#endif\n", NIL);
	Printv(f_init, "  }\n", NIL);
	Delete(base_name);
	Delete(base_mname);
      }
      if (base_count > max_bases)
	max_bases = base_count;
    }
    Printv(f_init, "  builtin_bases[builtin_base_count] = NULL;\n", NIL);
    Printv(f_init, "  SwigPyBuiltin_InitBases(builtin_pytype, builtin_bases);\n", NIL);
    builtin_bases_needed = 1;

    // Check for non-public destructor, in which case tp_dealloc will issue
    // a warning and allow the memory to leak.  Any class that doesn't explicitly
    // have a private/protected destructor has an implicit public destructor.
    static String *tp_dealloc_bad = NewString("SwigPyBuiltin_BadDealloc");

    String *getset_name = NewStringf("%s_getset", templ);
    String *methods_name = NewStringf("%s_methods", templ);
    String *getset_def = NewString("");
    Printf(getset_def, "SWIGINTERN PyGetSetDef %s[] = {\n", getset_name);

    // All objects have 'this' and 'thisown' attributes
    Printv(f_init, "PyDict_SetItemString(d, \"this\", this_descr);\n", NIL);
    Printv(f_init, "PyDict_SetItemString(d, \"thisown\", thisown_descr);\n", NIL);

    // Now, the rest of the attributes
    for (Iterator member_iter = First(builtin_getset); member_iter.item; member_iter = Next(member_iter)) {
      String *memname = member_iter.key;
      Hash *mgetset = member_iter.item;
      String *getter = Getattr(mgetset, "getter");
      String *setter = Getattr(mgetset, "setter");
      const char *getter_closure = getter ? funpack ? "SwigPyBuiltin_FunpackGetterClosure" : "SwigPyBuiltin_GetterClosure" : "0";
      const char *setter_closure = setter ? funpack ? "SwigPyBuiltin_FunpackSetterClosure" : "SwigPyBuiltin_SetterClosure" : "0";
      String *gspair = NewStringf("%s_%s_getset", symname, memname);
      Printf(f, "static SwigPyGetSet %s = { %s, %s };\n", gspair, getter ? getter : "0", setter ? setter : "0");
      String *entry =
	  NewStringf("{ (char *) \"%s\", (getter) %s, (setter) %s, (char *)\"%s.%s\", (void *) &%s }\n", memname, getter_closure,
		     setter_closure, name, memname, gspair);
      if (GetFlag(mgetset, "static")) {
	Printf(f, "static PyGetSetDef %s_def = %s;\n", gspair, entry);
	Printf(f_init, "static_getset = SwigPyStaticVar_new_getset(metatype, &%s_def);\n", gspair);
	Printf(f_init, "PyDict_SetItemString(d, static_getset->d_getset->name, (PyObject *) static_getset);\n", memname);
	Printf(f_init, "Py_DECREF(static_getset);\n");
      } else {
	Printf(getset_def, "    %s,\n", entry);
      }
      Delete(gspair);
      Delete(entry);
    }
    Printv(f, getset_def, "    {NULL, NULL, NULL, NULL, NULL} /* Sentinel */\n", "};\n\n", NIL);

    // Rich compare function
    Hash *richcompare = Getattr(n, "python:richcompare");
    String *richcompare_func = NewStringf("%s_richcompare", templ);
    assert(richcompare);
    Printf(f, "SWIGINTERN PyObject *\n");
    Printf(f, "%s(PyObject *self, PyObject *other, int op) {\n", richcompare_func);
    Printf(f, "  PyObject *result = NULL;\n");
    if (!funpack) {
      Printf(f, "  PyObject *tuple = PyTuple_New(1);\n");
      Printf(f, "  assert(tuple);\n");
      Printf(f, "  PyTuple_SET_ITEM(tuple, 0, other);\n");
      Printf(f, "  Py_XINCREF(other);\n");
    }
    Iterator rich_iter = First(richcompare);
    if (rich_iter.item) {
      Printf(f, "  switch (op) {\n");
      for (; rich_iter.item; rich_iter = Next(rich_iter))
	Printf(f, "    case %s : result = %s(self, %s); break;\n", rich_iter.key, rich_iter.item, funpack ? "other" : "tuple");
      Printv(f, "    default : break;\n", NIL);
      Printf(f, "  }\n");
    }
    Printv(f, "  if (!result) {\n", NIL);
    Printv(f, "    if (SwigPyObject_Check(self) && SwigPyObject_Check(other)) {\n", NIL);
    Printv(f, "      result = SwigPyObject_richcompare((SwigPyObject *)self, (SwigPyObject *)other, op);\n", NIL);
    Printv(f, "    } else {\n", NIL);
    Printv(f, "      result = Py_NotImplemented;\n", NIL);
    Printv(f, "      Py_INCREF(result);\n", NIL);
    Printv(f, "    }\n", NIL);
    Printv(f, "  }\n", NIL);
    if (!funpack)
      Printf(f, "  Py_DECREF(tuple);\n");
    Printf(f, "  return result;\n");
    Printf(f, "}\n\n");

    // Methods
    Printf(f, "SWIGINTERN PyMethodDef %s_methods[] = {\n", templ);
    Dump(builtin_methods, f);
    Printf(f, "  { NULL, NULL, 0, NULL } /* Sentinel */\n};\n\n");

    // No instance dict for nondynamic objects
    if (GetFlag(n, "feature:python:nondynamic"))
      Setattr(n, "feature:python:tp_setattro", "SWIG_Python_NonDynamicSetAttr");

    Node *mod = Getattr(n, "module");
    String *modname = mod ? Getattr(mod, "name") : 0;
    String *quoted_symname;
    if (package) {
      if (modname)
	quoted_symname = NewStringf("\"%s.%s.%s\"", package, modname, symname);
      else
	quoted_symname = NewStringf("\"%s.%s\"", package, symname);
    } else {
      if (modname)
	quoted_symname = NewStringf("\"%s.%s\"", modname, symname);
      else
	quoted_symname = NewStringf("\"%s\"", symname);
    }
    String *quoted_tp_doc_str = NewStringf("\"%s\"", getSlot(n, "feature:python:tp_doc"));
    String *tp_init = NewString(builtin_tp_init ? Char(builtin_tp_init) : Swig_directorclass(n) ? "0" : "SwigPyBuiltin_BadInit");
    String *tp_flags = NewString("Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_CHECKTYPES");
    String *tp_flags_py3 = NewString("Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE");

    static String *tp_basicsize = NewStringf("sizeof(SwigPyObject)");
    static String *tp_dictoffset_default = NewString("offsetof(SwigPyObject, dict)");
    static String *tp_hash = NewString("SwigPyObject_hash");
    String *tp_as_number = NewStringf("&%s_type.as_number", templ);
    String *tp_as_sequence = NewStringf("&%s_type.as_sequence", templ);
    String *tp_as_mapping = NewStringf("&%s_type.as_mapping", templ);
    String *tp_as_buffer = NewStringf("&%s_type.as_buffer", templ);

    Printf(f, "static PyHeapTypeObject %s_type = {\n", templ);

    // PyTypeObject ht_type
    Printf(f, "  {\n");
    Printv(f, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
    Printv(f, "    PyVarObject_HEAD_INIT(NULL, 0)\n", NIL);
    Printv(f, "#else\n", NIL);
    Printf(f, "    PyObject_HEAD_INIT(NULL)\n");
    printSlot(f, getSlot(), "ob_size");
    Printv(f, "#endif\n", NIL);
    printSlot(f, quoted_symname, "tp_name");
    printSlot(f, getSlot(n, "feature:python:tp_basicsize", tp_basicsize), "tp_basicsize");
    printSlot(f, getSlot(n, "feature:python:tp_itemsize"), "tp_itemsize");
    printSlot(f, getSlot(n, "feature:python:tp_dealloc", tp_dealloc_bad), "tp_dealloc", "destructor");
    printSlot(f, getSlot(n, "feature:python:tp_print"), "tp_print", "printfunc");
    printSlot(f, getSlot(n, "feature:python:tp_getattr"), "tp_getattr", "getattrfunc");
    printSlot(f, getSlot(n, "feature:python:tp_setattr"), "tp_setattr", "setattrfunc");
    Printv(f, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_compare"), "tp_compare");
    Printv(f, "#else\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_compare"), "tp_compare", "cmpfunc");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_repr"), "tp_repr", "reprfunc");
    printSlot(f, getSlot(n, "feature:python:tp_as_number", tp_as_number), "tp_as_number");
    printSlot(f, getSlot(n, "feature:python:tp_as_sequence", tp_as_sequence), "tp_as_sequence");
    printSlot(f, getSlot(n, "feature:python:tp_as_mapping", tp_as_mapping), "tp_as_mapping");
    printSlot(f, getSlot(n, "feature:python:tp_hash", tp_hash), "tp_hash", "hashfunc");
    printSlot(f, getSlot(n, "feature:python:tp_call"), "tp_call", "ternaryfunc");
    printSlot(f, getSlot(n, "feature:python:tp_str"), "tp_str", "reprfunc");
    printSlot(f, getSlot(n, "feature:python:tp_getattro"), "tp_getattro", "getattrofunc");
    printSlot(f, getSlot(n, "feature:python:tp_setattro"), "tp_setattro", "setattrofunc");
    printSlot(f, getSlot(n, "feature:python:tp_as_buffer", tp_as_buffer), "tp_as_buffer");
    Printv(f, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_flags", tp_flags_py3), "tp_flags");
    Printv(f, "#else\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_flags", tp_flags), "tp_flags");
    Printv(f, "#endif\n", NIL);
    printSlot(f, quoted_tp_doc_str, "tp_doc");
    printSlot(f, getSlot(n, "feature:python:tp_traverse"), "tp_traverse", "traverseproc");
    printSlot(f, getSlot(n, "feature:python:tp_clear"), "tp_clear", "inquiry");
    printSlot(f, getSlot(n, "feature:python:tp_richcompare", richcompare_func), "tp_richcompare", "richcmpfunc");
    printSlot(f, getSlot(n, "feature:python:tp_weaklistoffset"), "tp_weaklistoffset");
    printSlot(f, getSlot(n, "feature:python:tp_iter"), "tp_iter", "getiterfunc");
    printSlot(f, getSlot(n, "feature:python:tp_iternext"), "tp_iternext", "iternextfunc");
    printSlot(f, getSlot(n, "feature:python:tp_methods", methods_name), "tp_methods");
    printSlot(f, getSlot(n, "feature:python:tp_members"), "tp_members");
    printSlot(f, getSlot(n, "feature:python:tp_getset", getset_name), "tp_getset");
    printSlot(f, getSlot(n, "feature:python:tp_base"), "tp_base");
    printSlot(f, getSlot(n, "feature:python:tp_dict"), "tp_dict");
    printSlot(f, getSlot(n, "feature:python:tp_descr_get"), "tp_descr_get", "descrgetfunc");
    printSlot(f, getSlot(n, "feature:python:tp_descr_set"), "tp_descr_set", "descrsetfunc");
    printSlot(f, getSlot(n, "feature:python:tp_dictoffset", tp_dictoffset_default), "tp_dictoffset", "Py_ssize_t");
    printSlot(f, getSlot(n, "feature:python:tp_init", tp_init), "tp_init", "initproc");
    printSlot(f, getSlot(n, "feature:python:tp_alloc"), "tp_alloc", "allocfunc");
    printSlot(f, getSlot(), "tp_new", "newfunc");
    printSlot(f, getSlot(n, "feature:python:tp_free"), "tp_free", "freefunc");
    printSlot(f, getSlot(n, "feature:python:tp_is_gc"), "tp_is_gc", "inquiry");
    printSlot(f, getSlot(n, "feature:python:tp_bases"), "tp_bases", "PyObject *");
    printSlot(f, getSlot(n, "feature:python:tp_mro"), "tp_mro", "PyObject *");
    printSlot(f, getSlot(n, "feature:python:tp_cache"), "tp_cache", "PyObject *");
    printSlot(f, getSlot(n, "feature:python:tp_subclasses"), "tp_subclasses", "PyObject *");
    printSlot(f, getSlot(n, "feature:python:tp_weaklist"), "tp_weaklist", "PyObject *");
    printSlot(f, getSlot(n, "feature:python:tp_del"), "tp_del", "destructor");
    Printv(f, "#if PY_VERSION_HEX >= 0x02060000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_version_tag"), "tp_version_tag", "int");
    Printv(f, "#endif\n", NIL);
    Printv(f, "#if PY_VERSION_HEX >= 0x03040000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_finalize"), "tp_finalize", "destructor");
    Printv(f, "#endif\n", NIL);
    Printv(f, "#ifdef COUNT_ALLOCS\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_allocs"), "tp_allocs", "Py_ssize_t");
    printSlot(f, getSlot(n, "feature:python:tp_frees"), "tp_frees", "Py_ssize_t");
    printSlot(f, getSlot(n, "feature:python:tp_maxalloc"), "tp_maxalloc", "Py_ssize_t");
    Printv(f, "#if PY_VERSION_HEX >= 0x02050000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_prev"), "tp_prev");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:tp_next"), "tp_next");
    Printv(f, "#endif\n", NIL);
    Printf(f, "  },\n");

    // PyAsyncMethods as_async
    Printv(f, "#if PY_VERSION_HEX >= 0x03050000\n", NIL);
    Printf(f, "  {\n");
    printSlot(f, getSlot(n, "feature:python:am_await"), "am_await", "unaryfunc");
    printSlot(f, getSlot(n, "feature:python:am_aiter"), "am_aiter", "unaryfunc");
    printSlot(f, getSlot(n, "feature:python:am_anext"), "am_anext", "unaryfunc");
    Printf(f, "  },\n");
    Printv(f, "#endif\n", NIL);

    // PyNumberMethods as_number
    Printf(f, "  {\n");
    printSlot(f, getSlot(n, "feature:python:nb_add"), "nb_add", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_subtract"), "nb_subtract", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_multiply"), "nb_multiply", "binaryfunc");
    Printv(f, "#if PY_VERSION_HEX < 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_divide"), "nb_divide", "binaryfunc");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_remainder"), "nb_remainder", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_divmod"), "nb_divmod", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_power"), "nb_power", "ternaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_negative"), "nb_negative", "unaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_positive"), "nb_positive", "unaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_absolute"), "nb_absolute", "unaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_nonzero"), "nb_nonzero", "inquiry");
    printSlot(f, getSlot(n, "feature:python:nb_invert"), "nb_invert", "unaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_lshift"), "nb_lshift", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_rshift"), "nb_rshift", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_and"), "nb_and", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_xor"), "nb_xor", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_or"), "nb_or", "binaryfunc");
    Printv(f, "#if PY_VERSION_HEX < 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_coerce"), "nb_coerce", "coercion");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_int"), "nb_int", "unaryfunc");
    Printv(f, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_reserved"), "nb_reserved", "void *");
    Printv(f, "#else\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_long"), "nb_long", "unaryfunc");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_float"), "nb_float", "unaryfunc");
    Printv(f, "#if PY_VERSION_HEX < 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_oct"), "nb_oct", "unaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_hex"), "nb_hex", "unaryfunc");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_inplace_add"), "nb_inplace_add", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_subtract"), "nb_inplace_subtract", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_multiply"), "nb_inplace_multiply", "binaryfunc");
    Printv(f, "#if PY_VERSION_HEX < 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_inplace_divide"), "nb_inplace_divide", "binaryfunc");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_inplace_remainder"), "nb_inplace_remainder", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_power"), "nb_inplace_power", "ternaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_lshift"), "nb_inplace_lshift", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_rshift"), "nb_inplace_rshift", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_and"), "nb_inplace_and", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_xor"), "nb_inplace_xor", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_or"), "nb_inplace_or", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_floor_divide"), "nb_floor_divide", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_divide"), "nb_true_divide", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_floor_divide"), "nb_inplace_floor_divide", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_divide"), "nb_inplace_true_divide", "binaryfunc");
    Printv(f, "#if PY_VERSION_HEX >= 0x02050000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_index"), "nb_index", "unaryfunc");
    Printv(f, "#endif\n", NIL);
    Printv(f, "#if PY_VERSION_HEX >= 0x03050000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:nb_matrix_multiply"), "nb_matrix_multiply", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:nb_inplace_matrix_multiply"), "nb_inplace_matrix_multiply", "binaryfunc");
    Printv(f, "#endif\n", NIL);
    Printf(f, "  },\n");

    // PyMappingMethods as_mapping;
    Printf(f, "  {\n");
    printSlot(f, getSlot(n, "feature:python:mp_length"), "mp_length", "lenfunc");
    printSlot(f, getSlot(n, "feature:python:mp_subscript"), "mp_subscript", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:mp_ass_subscript"), "mp_ass_subscript", "objobjargproc");
    Printf(f, "  },\n");

    // PySequenceMethods as_sequence;
    Printf(f, "  {\n");
    printSlot(f, getSlot(n, "feature:python:sq_length"), "sq_length", "lenfunc");
    printSlot(f, getSlot(n, "feature:python:sq_concat"), "sq_concat", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:sq_repeat"), "sq_repeat", "ssizeargfunc");
    printSlot(f, getSlot(n, "feature:python:sq_item"), "sq_item", "ssizeargfunc");
    Printv(f, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:was_sq_slice"), "was_sq_slice", "void *");
    Printv(f, "#else\n", NIL);
    printSlot(f, getSlot(n, "feature:python:sq_slice"), "sq_slice", "ssizessizeargfunc");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:sq_ass_item"), "sq_ass_item", "ssizeobjargproc");
    Printv(f, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:was_sq_ass_slice"), "was_sq_ass_slice", "void *");
    Printv(f, "#else\n", NIL);
    printSlot(f, getSlot(n, "feature:python:sq_ass_slice"), "sq_ass_slice", "ssizessizeobjargproc");
    Printv(f, "#endif\n", NIL);
    printSlot(f, getSlot(n, "feature:python:sq_contains"), "sq_contains", "objobjproc");
    printSlot(f, getSlot(n, "feature:python:sq_inplace_concat"), "sq_inplace_concat", "binaryfunc");
    printSlot(f, getSlot(n, "feature:python:sq_inplace_repeat"), "sq_inplace_repeat", "ssizeargfunc");
    Printf(f, "  },\n");

    // PyBufferProcs as_buffer;
    Printf(f, "  {\n");
    Printv(f, "#if PY_VERSION_HEX < 0x03000000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:bf_getreadbuffer"), "bf_getreadbuffer", "readbufferproc");
    printSlot(f, getSlot(n, "feature:python:bf_getwritebuffer"), "bf_getwritebuffer", "writebufferproc");
    printSlot(f, getSlot(n, "feature:python:bf_getsegcount"), "bf_getsegcount", "segcountproc");
    printSlot(f, getSlot(n, "feature:python:bf_getcharbuffer"), "bf_getcharbuffer", "charbufferproc");
    Printv(f, "#endif\n", NIL);
    Printv(f, "#if PY_VERSION_HEX >= 0x02060000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:bf_getbuffer"), "bf_getbuffer", "getbufferproc");
    printSlot(f, getSlot(n, "feature:python:bf_releasebuffer"), "bf_releasebuffer", "releasebufferproc");
    Printv(f, "#endif\n", NIL);
    Printf(f, "  },\n");

    // PyObject *ht_name, *ht_slots, *ht_qualname;
    printSlot(f, getSlot(n, "feature:python:ht_name"), "ht_name", "PyObject *");
    printSlot(f, getSlot(n, "feature:python:ht_slots"), "ht_slots", "PyObject *");
    Printv(f, "#if PY_VERSION_HEX >= 0x03030000\n", NIL);
    printSlot(f, getSlot(n, "feature:python:ht_qualname"), "ht_qualname", "PyObject *");

    // struct _dictkeysobject *ht_cached_keys;
    printSlot(f, getSlot(n, "feature:python:ht_cached_keys"), "ht_cached_keys");
    Printv(f, "#endif\n", NIL);
    Printf(f, "};\n\n");

    String *clientdata = NewString("");
    Printf(clientdata, "&%s_clientdata", templ);
    SwigType_remember_mangleddata(pmname, clientdata);

    SwigType *smart = Swig_cparse_smartptr(n);
    if (smart) {
      SwigType_add_pointer(smart);
      String *smart_pmname = SwigType_manglestr(smart);
      SwigType_remember_mangleddata(smart_pmname, clientdata);
      Delete(smart_pmname);
    }

    String *clientdata_klass = NewString("0");
    if (GetFlag(n, "feature:implicitconv")) {
      Clear(clientdata_klass);
      Printf(clientdata_klass, "(PyObject *) &%s_type", templ);
    }

    Printf(f, "SWIGINTERN SwigPyClientData %s_clientdata = {%s, 0, 0, 0, 0, 0, (PyTypeObject *)&%s_type};\n\n", templ, clientdata_klass, templ);

    Printv(f_init, "    if (PyType_Ready(builtin_pytype) < 0) {\n", NIL);
    Printf(f_init, "      PyErr_SetString(PyExc_TypeError, \"Could not create type '%s'.\");\n", symname);
    Printv(f_init, "#if PY_VERSION_HEX >= 0x03000000\n", NIL);
    Printv(f_init, "      return NULL;\n", NIL);
    Printv(f_init, "#else\n", NIL);
    Printv(f_init, "      return;\n", NIL);
    Printv(f_init, "#endif\n", NIL);
    Printv(f_init, "    }\n", NIL);
    Printv(f_init, "    Py_INCREF(builtin_pytype);\n", NIL);
    Printf(f_init, "    PyModule_AddObject(m, \"%s\", (PyObject *)builtin_pytype);\n", symname);
    Printf(f_init, "    SwigPyBuiltin_AddPublicSymbol(public_interface, \"%s\");\n", symname);
    Printv(f_init, "    d = md;\n", NIL);

    Delete(clientdata);
    Delete(smart);
    Delete(rname);
    Delete(pname);
    Delete(mname);
    Delete(pmname);
    Delete(templ);
    Delete(tp_flags);
    Delete(tp_flags_py3);
    Delete(tp_as_buffer);
    Delete(tp_as_mapping);
    Delete(tp_as_sequence);
    Delete(tp_as_number);
    Delete(quoted_symname);
    Delete(quoted_tp_doc_str);
    Delete(tp_init);
    Delete(clientdata_klass);
    Delete(richcompare_func);
    Delete(getset_name);
    Delete(methods_name);
  }

  virtual int classHandler(Node *n) {
    int oldclassic = classic;
    int oldmodern = modern;
    File *f_shadow_file = f_shadow;
    Node *base_node = NULL;

    if (shadow) {

      /* Create new strings for building up a wrapper function */
      have_constructor = 0;
      have_repr = 0;

      if (GetFlag(n, "feature:classic")) {
	classic = 1;
	modern = 0;
      }
      if (GetFlag(n, "feature:modern")) {
	classic = 0;
	modern = 1;
      }
      if (GetFlag(n, "feature:exceptionclass")) {
	classic = 1;
	modern = 0;
      }

      class_name = Getattr(n, "sym:name");
      real_classname = Getattr(n, "name");

      if (!addSymbol(class_name, n))
	return SWIG_ERROR;

      if (builtin) {
	List *baselist = Getattr(n, "bases");
	if (baselist && Len(baselist) > 0) {
	  Iterator b = First(baselist);
	  base_node = b.item;
	}
      }

      shadow_indent = (String *) tab4;

      /* Handle inheritance */
      String *base_class = NewString("");
      List *baselist = Getattr(n, "bases");
      if (baselist && Len(baselist)) {
	Iterator b;
	b = First(baselist);
	while (b.item) {
	  String *bname = Getattr(b.item, "python:proxy");
	  bool ignore = GetFlag(b.item, "feature:ignore") ? true : false;
	  if (!bname || ignore) {
	    if (!bname && !ignore) {
	      Swig_warning(WARN_TYPE_UNDEFINED_CLASS, Getfile(n), Getline(n),
			   "Base class '%s' ignored - unknown module name for base. Either import the appropriate module interface file or specify the name of the module in the %%import directive.\n",
			   SwigType_namestr(Getattr(b.item, "name")));
	    }
	    b = Next(b);
	    continue;
	  }
	  Printv(base_class, bname, NIL);
	  b = Next(b);
	  if (b.item) {
            Printv(base_class, ", ", NIL);
	  }
	}
      }

      if (builtin) {
	Hash *base_richcompare = NULL;
	Hash *richcompare = NULL;
	if (base_node)
	  base_richcompare = Getattr(base_node, "python:richcompare");
	if (base_richcompare)
	  richcompare = Copy(base_richcompare);
	else
	  richcompare = NewHash();
	Setattr(n, "python:richcompare", richcompare);
      }

      /* dealing with abstract base class */
      String *abcs = Getattr(n, "feature:python:abc");
      if (py3 && abcs) {
	if (Len(base_class)) {
	  Printv(base_class, ", ", NIL);
	}
	Printv(base_class, abcs, NIL);
      }

      if (builtin) {
	if (have_docstring(n)) {
	  String *str = cdocstring(n, AUTODOC_CLASS);
	  Setattr(n, "feature:python:tp_doc", str);
	  Delete(str);
	} else {
	  String *name = Getattr(n, "name");
	  String *rname = add_explicit_scope(SwigType_namestr(name));
	  Setattr(n, "feature:python:tp_doc", rname);
	  Delete(rname);
	}
      } else {
	Printv(f_shadow, "class ", class_name, NIL);

	if (Len(base_class)) {
	  Printf(f_shadow, "(%s)", base_class);
	} else {
	  if (!classic) {
	    Printf(f_shadow, modern ? "(object)" : "(_object)");
	  }
	  if (GetFlag(n, "feature:exceptionclass")) {
	    Printf(f_shadow, "(Exception)");
	  }
	}

	Printf(f_shadow, ":\n");
	if (have_docstring(n)) {
	  String *str = docstring(n, AUTODOC_CLASS, tab4);
	  if (str && Len(str))
	    Printv(f_shadow, tab4, str, "\n\n", NIL);
	}

	if (!modern) {
	  Printv(f_shadow, tab4, "__swig_setmethods__ = {}\n", NIL);
	  if (Len(base_class)) {
	    Printv(f_shadow, tab4, "for _s in [", base_class, "]:\n", tab8, "__swig_setmethods__.update(getattr(_s, '__swig_setmethods__', {}))\n", NIL);
	  }

	  if (!GetFlag(n, "feature:python:nondynamic")) {
	    Printv(f_shadow, tab4, "__setattr__ = lambda self, name, value: _swig_setattr(self, ", class_name, ", name, value)\n", NIL);
	  } else {
	    Printv(f_shadow, tab4, "__setattr__ = lambda self, name, value: _swig_setattr_nondynamic(self, ", class_name, ", name, value)\n", NIL);
	  }

	  Printv(f_shadow, tab4, "__swig_getmethods__ = {}\n", NIL);
	  if (Len(base_class)) {
	    Printv(f_shadow, tab4, "for _s in [", base_class, "]:\n", tab8, "__swig_getmethods__.update(getattr(_s, '__swig_getmethods__', {}))\n", NIL);
	  }

	  Printv(f_shadow, tab4, "__getattr__ = lambda self, name: _swig_getattr(self, ", class_name, ", name)\n", NIL);
	} else {
	  Printv(f_shadow, tab4, "thisown = _swig_property(lambda x: x.this.own(), ", "lambda x, v: x.this.own(v), doc='The membership flag')\n", NIL);
	  /* Add static attribute */
	  if (GetFlag(n, "feature:python:nondynamic")) {
	    Printv(f_shadow_file,
		   tab4, "__setattr__ = _swig_setattr_nondynamic_method(object.__setattr__)\n",
		   tab4, "class __metaclass__(type):\n", tab4, tab4, "__setattr__ = _swig_setattr_nondynamic_method(type.__setattr__)\n", NIL);
	  }
	}
      }
    }

    /* Emit all of the members */

    in_class = 1;
    if (builtin)
      builtin_pre_decl(n);

    /* Override the shadow file so we can capture its methods */
    f_shadow = NewString("");

    // Set up type check for director class constructor
    Clear(none_comparison);
    if (builtin && Swig_directorclass(n)) {
      String *p_real_classname = Copy(real_classname);
      SwigType_add_pointer(p_real_classname);
      String *mangle = SwigType_manglestr(p_real_classname);
      String *descriptor = NewStringf("SWIGTYPE%s", mangle);
      Printv(none_comparison, "self->ob_type != ((SwigPyClientData *)(", descriptor, ")->clientdata)->pytype", NIL);
      Delete(descriptor);
      Delete(mangle);
      Delete(p_real_classname);
    } else {
      Printv(none_comparison, "$arg != Py_None", NIL);
    }

    Language::classHandler(n);

    in_class = 0;

    /* Complete the class */
    if (shadow) {
      /* Generate a class registration function */
      // Replace storing a pointer to underlying class with a smart pointer (intended for use with non-intrusive smart pointers)
      SwigType *smart = Swig_cparse_smartptr(n);
      SwigType *ct = Copy(smart ? smart : real_classname);
      SwigType_add_pointer(ct);
      SwigType *realct = Copy(real_classname);
      SwigType_add_pointer(realct);
      SwigType_remember(realct);
      if (builtin) {
	Printv(f_wrappers, builtin_closures_code, NIL);
	Delete(builtin_closures_code);
	builtin_closures_code = NewString("");
	Clear(builtin_closures);
      } else {
	Printv(f_wrappers, "SWIGINTERN PyObject *", class_name, "_swigregister(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {\n", NIL);
	Printv(f_wrappers, "  PyObject *obj;\n", NIL);
	if (modernargs) {
	  if (fastunpack) {
	    Printv(f_wrappers, "  if (!SWIG_Python_UnpackTuple(args,(char *)\"swigregister\", 1, 1,&obj)) return NULL;\n", NIL);
	  } else {
	    Printv(f_wrappers, "  if (!PyArg_UnpackTuple(args,(char *)\"swigregister\", 1, 1,&obj)) return NULL;\n", NIL);
	  }
	} else {
	  Printv(f_wrappers, "  if (!PyArg_ParseTuple(args,(char *)\"O:swigregister\", &obj)) return NULL;\n", NIL);
	}

	Printv(f_wrappers,
	       "  SWIG_TypeNewClientData(SWIGTYPE", SwigType_manglestr(ct), ", SWIG_NewClientData(obj));\n", "  return SWIG_Py_Void();\n", "}\n\n", NIL);
	String *cname = NewStringf("%s_swigregister", class_name);
	add_method(cname, cname, 0);
	Delete(cname);
      }
      Delete(smart);
      Delete(ct);
      Delete(realct);
      if (!have_constructor) {
	if (!builtin)
	  Printv(f_shadow_file, "\n", tab4, "def __init__(self, *args, **kwargs):\n", tab8, "raise AttributeError(\"", "No constructor defined",
		 (Getattr(n, "abstracts") ? " - class is abstract" : ""), "\")\n", NIL);
      } else if (fastinit && !builtin) {

	Printv(f_wrappers, "SWIGINTERN PyObject *", class_name, "_swiginit(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {\n", NIL);
	Printv(f_wrappers, "  return SWIG_Python_InitShadowInstance(args);\n", "}\n\n", NIL);
	String *cname = NewStringf("%s_swiginit", class_name);
	add_method(cname, cname, 0);
	Delete(cname);
      }
      if (!have_repr && !builtin) {
	/* Supply a repr method for this class  */
	String *rname = SwigType_namestr(real_classname);
	if (new_repr) {
	  Printv(f_shadow_file, tab4, "__repr__ = _swig_repr\n", NIL);
	} else {
	  Printv(f_shadow_file, tab4, "def __repr__(self):\n", tab8, "return \"<C ", rname, " instance at %p>\" % (self.this,)\n", NIL);
	}
	Delete(rname);
      }

      if (builtin)
	builtin_post_decl(f_builtins, n);

      if (builtin_tp_init) {
	Delete(builtin_tp_init);
	builtin_tp_init = 0;
      }

      /* Now emit methods */
      if (!builtin)
	Printv(f_shadow_file, f_shadow, NIL);

      /* Now the Ptr class */
      if (classptr && !builtin) {
	Printv(f_shadow_file, "\nclass ", class_name, "Ptr(", class_name, "):\n", tab4, "def __init__(self, this):\n", NIL);
	if (!modern) {
	  Printv(f_shadow_file,
		 tab8, "try:\n", tab8, tab4, "self.this.append(this)\n",
		 tab8, "except __builtin__.Exception:\n", tab8, tab4, "self.this = this\n", tab8, "self.this.own(0)\n", tab8, "self.__class__ = ", class_name, "\n\n", NIL);
	} else {
	  Printv(f_shadow_file,
		 tab8, "try:\n", tab8, tab4, "self.this.append(this)\n",
		 tab8, "except __builtin__.Exception:\n", tab8, tab4, "self.this = this\n", tab8, "self.this.own(0)\n", tab8, "self.__class__ = ", class_name, "\n\n", NIL);
	}
      }

      if (!builtin) {
	if (fastproxy) {
	  List *shadow_list = Getattr(n, "shadow_methods");
	  for (int i = 0; i < Len(shadow_list); ++i) {
	    String *symname = Getitem(shadow_list, i);
	    Printf(f_shadow_file, "%s.%s = new_instancemethod(%s.%s, None, %s)\n", class_name, symname, module, Swig_name_member(NSPACE_TODO, class_name, symname),
		   class_name);
	  }
	}
	Printf(f_shadow_file, "%s_swigregister = %s.%s_swigregister\n", class_name, module, class_name);
	Printf(f_shadow_file, "%s_swigregister(%s)\n", class_name, class_name);
      }

      shadow_indent = 0;
      Printf(f_shadow_file, "%s\n", f_shadow_stubs);
      Clear(f_shadow_stubs);
    }

    if (builtin) {
      Clear(class_members);
      Clear(builtin_getset);
      Clear(builtin_methods);
    }

    classic = oldclassic;
    modern = oldmodern;

    /* Restore shadow file back to original version */
    Delete(f_shadow);
    f_shadow = f_shadow_file;

    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * functionHandler()  -  Mainly overloaded for callback handling
   * ------------------------------------------------------------ */

  virtual int functionHandler(Node *n) {
    String *pcb = GetFlagAttr(n, "feature:python:callback");
    if (pcb) {
      if (Strcmp(pcb, "1") == 0) {
	SetFlagAttr(n, "feature:callback", "%s_cb_ptr");
      } else {
	SetFlagAttr(n, "feature:callback", pcb);
      }
      autodoc_l dlevel = autodoc_level(Getattr(n, "feature:autodoc"));
      if (dlevel != NO_AUTODOC && dlevel > TYPES_AUTODOC) {
	Setattr(n, "feature:autodoc", "1");
      }
    }
    return Language::functionHandler(n);
  }

  /* ------------------------------------------------------------
   * memberfunctionHandler()
   * ------------------------------------------------------------ */

  virtual int memberfunctionHandler(Node *n) {
    String *symname = Getattr(n, "sym:name");
    int oldshadow;

    if (builtin)
      Swig_save("builtin_memberfunc", n, "python:argcount", NIL);

    /* Create the default member function */
    oldshadow = shadow;		/* Disable shadowing when wrapping member functions */
    if (shadow)
      shadow = shadow | PYSHADOW_MEMBER;
    Language::memberfunctionHandler(n);
    shadow = oldshadow;

    if (builtin && in_class) {
      // Can't use checkAttribute(n, "access", "public") because
      // "access" attr isn't set on %extend methods
      if (!checkAttribute(n, "access", "private") && strncmp(Char(symname), "operator ", 9) && !Getattr(class_members, symname)) {
	String *fullname = Swig_name_member(NSPACE_TODO, class_name, symname);
	String *wname = Swig_name_wrapper(fullname);
	Setattr(class_members, symname, n);
	int argcount = Getattr(n, "python:argcount") ? atoi(Char(Getattr(n, "python:argcount"))) : 2;
	String *ds = have_docstring(n) ? cdocstring(n, AUTODOC_FUNC) : NewString("");
	if (check_kwargs(n)) {
	  Printf(builtin_methods, "  { \"%s\", (PyCFunction) %s, METH_VARARGS|METH_KEYWORDS, (char *) \"%s\" },\n", symname, wname, ds);
	} else if (argcount == 0) {
	  Printf(builtin_methods, "  { \"%s\", (PyCFunction) %s, METH_NOARGS, (char *) \"%s\" },\n", symname, wname, ds);
	} else if (argcount == 1) {
	  Printf(builtin_methods, "  { \"%s\", (PyCFunction) %s, METH_O, (char *) \"%s\" },\n", symname, wname, ds);
	} else {
	  Printf(builtin_methods, "  { \"%s\", (PyCFunction) %s, METH_VARARGS, (char *) \"%s\" },\n", symname, wname, ds);
	}
	Delete(fullname);
	Delete(wname);
	Delete(ds);
      }
    }

    if (builtin)
      Swig_restore(n);

    if (!Getattr(n, "sym:nextSibling")) {
      if (shadow && !builtin) {
	int fproxy = fastproxy;
	String *fullname = Swig_name_member(NSPACE_TODO, class_name, symname);
	if (Strcmp(symname, "__repr__") == 0) {
	  have_repr = 1;
	}
	if (Getattr(n, "feature:shadow")) {
	  String *pycode = indent_pythoncode(Getattr(n, "feature:shadow"), tab4, Getfile(n), Getline(n), "%feature(\"shadow\")");
	  String *pyaction = NewStringf("%s.%s", module, fullname);
	  Replaceall(pycode, "$action", pyaction);
	  Delete(pyaction);
	  Printv(f_shadow, pycode, "\n", NIL);
	  Delete(pycode);
	  fproxy = 0;
	} else {
	  int allow_kwargs = (check_kwargs(n) && !Getattr(n, "sym:overloaded")) ? 1 : 0;
	  String *parms = make_pyParmList(n, true, false, allow_kwargs);
	  String *callParms = make_pyParmList(n, true, true, allow_kwargs);
	  if (!have_addtofunc(n)) {
	    if (!fastproxy || olddefs) {
	      Printv(f_shadow, "\n", tab4, "def ", symname, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL);
	      Printv(f_shadow, tab8, "return ", funcCall(fullname, callParms), "\n", NIL);
	    }
	  } else {
	    Printv(f_shadow, "\n", tab4, "def ", symname, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL);
	    if (have_docstring(n))
	      Printv(f_shadow, tab8, docstring(n, AUTODOC_METHOD, tab8), "\n", NIL);
	    if (have_pythonprepend(n)) {
	      fproxy = 0;
	      Printv(f_shadow, indent_pythoncode(pythonprepend(n), tab8, Getfile(n), Getline(n), "%pythonprepend or %feature(\"pythonprepend\")"), "\n", NIL);
	    }
	    if (have_pythonappend(n)) {
	      fproxy = 0;
	      Printv(f_shadow, tab8, "val = ", funcCall(fullname, callParms), "\n", NIL);
	      Printv(f_shadow, indent_pythoncode(pythonappend(n), tab8, Getfile(n), Getline(n), "%pythonappend or %feature(\"pythonappend\")"), "\n", NIL);
	      Printv(f_shadow, tab8, "return val\n\n", NIL);
	    } else {
	      Printv(f_shadow, tab8, "return ", funcCall(fullname, callParms), "\n\n", NIL);
	    }
	  }
	}
	if (fproxy) {
	  List *shadow_list = Getattr(getCurrentClass(), "shadow_methods");
	  if (!shadow_list) {
	    shadow_list = NewList();
	    Setattr(getCurrentClass(), "shadow_methods", shadow_list);
	    Delete(shadow_list);
	  }
	  Append(shadow_list, symname);
	}
	Delete(fullname);
      }
    }
    return SWIG_OK;
  }


  /* ------------------------------------------------------------
   * staticmemberfunctionHandler()
   * ------------------------------------------------------------ */

  virtual int staticmemberfunctionHandler(Node *n) {
    String *symname = Getattr(n, "sym:name");
    if (builtin && in_class) {
      Swig_save("builtin_memberconstantHandler", n, "pybuiltin:symname", NIL);
      Setattr(n, "pybuiltin:symname", symname);
    }
    Language::staticmemberfunctionHandler(n);
    if (builtin && in_class) {
      Swig_restore(n);
    }

    if (builtin && in_class) {
      if ((GetFlagAttr(n, "feature:extend") || checkAttribute(n, "access", "public"))
	  && !Getattr(class_members, symname)) {
	String *fullname = Swig_name_member(NSPACE_TODO, class_name, symname);
	String *wname = Swig_name_wrapper(fullname);
	Setattr(class_members, symname, n);
	int funpack = modernargs && fastunpack && !Getattr(n, "sym:overloaded");
	String *pyflags = NewString("METH_STATIC|");
	int argcount = Getattr(n, "python:argcount") ? atoi(Char(Getattr(n, "python:argcount"))) : 2;
	if (funpack && argcount == 0)
	  Append(pyflags, "METH_NOARGS");
	else if (funpack && argcount == 1)
	  Append(pyflags, "METH_O");
	else
	  Append(pyflags, "METH_VARARGS");
	if (have_docstring(n)) {
	  String *ds = cdocstring(n, AUTODOC_STATICFUNC);
	  Printf(builtin_methods, "  { \"%s\", (PyCFunction) %s, %s, (char *) \"%s\" },\n", symname, wname, pyflags, ds);
	  Delete(ds);
	} else {
	  Printf(builtin_methods, "  { \"%s\", (PyCFunction) %s, %s, \"\" },\n", symname, wname, pyflags);
	}
	Delete(fullname);
	Delete(wname);
	Delete(pyflags);
      }
      return SWIG_OK;
    }

    if (Getattr(n, "sym:nextSibling")) {
      return SWIG_OK;
    }

    if (shadow) {
      if (!Getattr(n, "feature:python:callback") && have_addtofunc(n)) {
	int kw = (check_kwargs(n) && !Getattr(n, "sym:overloaded")) ? 1 : 0;
	String *parms = make_pyParmList(n, false, false, kw);
	String *callParms = make_pyParmList(n, false, true, kw);
	Printv(f_shadow, "\n", tab4, "def ", symname, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL);
	if (have_docstring(n))
	  Printv(f_shadow, tab8, docstring(n, AUTODOC_STATICFUNC, tab8), "\n", NIL);
	if (have_pythonprepend(n))
	  Printv(f_shadow, indent_pythoncode(pythonprepend(n), tab8, Getfile(n), Getline(n), "%pythonprepend or %feature(\"pythonprepend\")"), "\n", NIL);
	if (have_pythonappend(n)) {
	  Printv(f_shadow, tab8, "val = ", funcCall(Swig_name_member(NSPACE_TODO, class_name, symname), callParms), "\n", NIL);
	  Printv(f_shadow, indent_pythoncode(pythonappend(n), tab8, Getfile(n), Getline(n), "%pythonappend or %feature(\"pythonappend\")"), "\n", NIL);
	  Printv(f_shadow, tab8, "return val\n\n", NIL);
	} else {
	  Printv(f_shadow, tab8, "return ", funcCall(Swig_name_member(NSPACE_TODO, class_name, symname), callParms), "\n\n", NIL);
	}
	Printv(f_shadow, tab4, symname, " = staticmethod(", symname, ")\n", NIL);
      } else {
	if (!classic) {
	  if (!modern)
	    Printv(f_shadow, tab4, "if _newclass:\n", tab4, NIL);
	  Printv(f_shadow, tab4, symname, " = staticmethod(", module, ".", Swig_name_member(NSPACE_TODO, class_name, symname),
		 ")\n", NIL);
	}
	if (classic || !modern) {
	  if (!classic)
	    Printv(f_shadow, tab4, "else:\n", tab4, NIL);
	  Printv(f_shadow, tab4, symname, " = ", module, ".", Swig_name_member(NSPACE_TODO, class_name, symname), "\n", NIL);
	}
      }
    }
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * constructorDeclaration()
   * ------------------------------------------------------------ */

  virtual int constructorHandler(Node *n) {
    String *symname = Getattr(n, "sym:name");
    int oldshadow = shadow;
    int use_director = Swig_directorclass(n);

    /* 
     * If we're wrapping the constructor of a C++ director class, prepend a new parameter
     * to receive the scripting language object (e.g. 'self')
     *
     */
    Swig_save("python:constructorHandler", n, "parms", NIL);
    if (use_director) {
      Parm *parms = Getattr(n, "parms");
      Parm *self;
      String *name = NewString("self");
      String *type = NewString("PyObject");
      SwigType_add_pointer(type);
      self = NewParm(type, name, n);
      Delete(type);
      Delete(name);
      Setattr(self, "lname", "O");
      if (parms)
	set_nextSibling(self, parms);
      Setattr(n, "parms", self);
      Setattr(n, "wrap:self", "1");
      Setattr(n, "hidden", "1");
      Delete(self);
    }

    if (shadow)
      shadow = shadow | PYSHADOW_MEMBER;
    Language::constructorHandler(n);
    shadow = oldshadow;

    Delattr(n, "wrap:self");
    Swig_restore(n);

    if (!Getattr(n, "sym:nextSibling")) {
      if (shadow) {
	int allow_kwargs = (check_kwargs(n) && (!Getattr(n, "sym:overloaded"))) ? 1 : 0;
	int handled_as_init = 0;
	if (!have_constructor) {
	  String *nname = Getattr(n, "sym:name");
	  String *sname = Getattr(getCurrentClass(), "sym:name");
	  String *cname = Swig_name_construct(NSPACE_TODO, sname);
	  handled_as_init = (Strcmp(nname, sname) == 0) || (Strcmp(nname, cname) == 0);
	  Delete(cname);
	}

	if (!have_constructor && handled_as_init) {
	  if (!builtin) {
	    if (Getattr(n, "feature:shadow")) {
	      String *pycode = indent_pythoncode(Getattr(n, "feature:shadow"), tab4, Getfile(n), Getline(n), "%feature(\"shadow\")");
	      String *pyaction = NewStringf("%s.%s", module, Swig_name_construct(NSPACE_TODO, symname));
	      Replaceall(pycode, "$action", pyaction);
	      Delete(pyaction);
	      Printv(f_shadow, pycode, "\n", NIL);
	      Delete(pycode);
	    } else {
	      String *pass_self = NewString("");
	      Node *parent = Swig_methodclass(n);
	      String *classname = Swig_class_name(parent);
	      String *rclassname = Swig_class_name(getCurrentClass());
	      assert(rclassname);

	      String *parms = make_pyParmList(n, true, false, allow_kwargs);
	      /* Pass 'self' only if using director */
	      String *callParms = make_pyParmList(n, false, true, allow_kwargs);

	      if (use_director) {
		Insert(callParms, 0, "_self, ");
		Printv(pass_self, tab8, NIL);
		Printf(pass_self, "if self.__class__ == %s:\n", classname);
		//Printv(pass_self, tab8, tab4, "args = (None,) + args\n", tab8, "else:\n", tab8, tab4, "args = (self,) + args\n", NIL);
		Printv(pass_self, tab8, tab4, "_self = None\n", tab8, "else:\n", tab8, tab4, "_self = self\n", NIL);
	      }

	      Printv(f_shadow, "\n", tab4, "def __init__(", parms, ")", returnTypeAnnotation(n), ":\n", NIL);
	      if (have_docstring(n))
		Printv(f_shadow, tab8, docstring(n, AUTODOC_CTOR, tab8), "\n", NIL);
	      if (have_pythonprepend(n))
		Printv(f_shadow, indent_pythoncode(pythonprepend(n), tab8, Getfile(n), Getline(n), "%pythonprepend or %feature(\"pythonprepend\")"), "\n", NIL);
	      Printv(f_shadow, pass_self, NIL);
	      if (fastinit) {
		Printv(f_shadow, tab8, module, ".", class_name, "_swiginit(self, ", funcCall(Swig_name_construct(NSPACE_TODO, symname), callParms), ")\n", NIL);
	      } else {
		Printv(f_shadow,
		       tab8, "this = ", funcCall(Swig_name_construct(NSPACE_TODO, symname), callParms), "\n",
		       tab8, "try:\n", tab8, tab4, "self.this.append(this)\n", tab8, "except __builtin__.Exception:\n", tab8, tab4, "self.this = this\n", NIL);
	      }
	      if (have_pythonappend(n))
		Printv(f_shadow, indent_pythoncode(pythonappend(n), tab8, Getfile(n), Getline(n), "%pythonappend or %feature(\"pythonappend\")"), "\n\n", NIL);
	      Delete(pass_self);
	    }
	    have_constructor = 1;
	  }
	} else {
	  /* Hmmm. We seem to be creating a different constructor.  We're just going to create a
	     function for it. */
	  if (Getattr(n, "feature:shadow")) {
	    String *pycode = indent_pythoncode(Getattr(n, "feature:shadow"), "", Getfile(n), Getline(n), "%feature(\"shadow\")");
	    String *pyaction = NewStringf("%s.%s", module, Swig_name_construct(NSPACE_TODO, symname));
	    Replaceall(pycode, "$action", pyaction);
	    Delete(pyaction);
	    Printv(f_shadow_stubs, pycode, "\n", NIL);
	    Delete(pycode);
	  } else {
	    String *parms = make_pyParmList(n, false, false, allow_kwargs);
	    String *callParms = make_pyParmList(n, false, true, allow_kwargs);

	    Printv(f_shadow_stubs, "\ndef ", symname, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL);
	    if (have_docstring(n))
	      Printv(f_shadow_stubs, tab4, docstring(n, AUTODOC_CTOR, tab4), "\n", NIL);
	    if (have_pythonprepend(n))
	      Printv(f_shadow_stubs, indent_pythoncode(pythonprepend(n), tab4, Getfile(n), Getline(n), "%pythonprepend or %feature(\"pythonprepend\")"), "\n", NIL);
	    String *subfunc = NULL;
	    /*
	       if (builtin)
	       subfunc = Copy(Getattr(getCurrentClass(), "sym:name"));
	       else
	     */
	    subfunc = Swig_name_construct(NSPACE_TODO, symname);
	    Printv(f_shadow_stubs, tab4, "val = ", funcCall(subfunc, callParms), "\n", NIL);
#ifdef USE_THISOWN
	    Printv(f_shadow_stubs, tab4, "val.thisown = 1\n", NIL);
#endif
	    if (have_pythonappend(n))
	      Printv(f_shadow_stubs, indent_pythoncode(pythonappend(n), tab4, Getfile(n), Getline(n), "%pythonappend or %feature(\"pythonappend\")"), "\n", NIL);
	    Printv(f_shadow_stubs, tab4, "return val\n", NIL);
	    Delete(subfunc);
	  }
	}
      }
    }
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * destructorHandler()
   * ------------------------------------------------------------ */

  virtual int destructorHandler(Node *n) {
    String *symname = Getattr(n, "sym:name");
    int oldshadow = shadow;

    if (builtin && in_class) {
      Node *cls = Swig_methodclass(n);
      // Use the destructor for the tp_dealloc slot unless a user overrides it with another method
      if (!Getattr(cls, "feature:python:tp_dealloc")) {
	Setattr(n, "feature:python:slot", "tp_dealloc");
	Setattr(n, "feature:python:slot:functype", "destructor");
      }
    }

    if (shadow)
      shadow = shadow | PYSHADOW_MEMBER;
    //Setattr(n,"emit:dealloc","1");
    Language::destructorHandler(n);
    shadow = oldshadow;

    if (shadow) {
      if (Getattr(n, "feature:shadow")) {
	String *pycode = indent_pythoncode(Getattr(n, "feature:shadow"), tab4, Getfile(n), Getline(n), "%feature(\"shadow\")");
	String *pyaction = NewStringf("%s.%s", module, Swig_name_destroy(NSPACE_TODO, symname));
	Replaceall(pycode, "$action", pyaction);
	Delete(pyaction);
	Printv(f_shadow, pycode, "\n", NIL);
	Delete(pycode);
      } else {
	Printv(f_shadow, tab4, "__swig_destroy__ = ", module, ".", Swig_name_destroy(NSPACE_TODO, symname), "\n", NIL);
	if (!have_pythonprepend(n) && !have_pythonappend(n)) {
	  if (proxydel) {
	    Printv(f_shadow, tab4, "__del__ = lambda self: None\n", NIL);
	  }
	  return SWIG_OK;
	}
	Printv(f_shadow, tab4, "def __del__(self):\n", NIL);
	if (have_docstring(n))
	  Printv(f_shadow, tab8, docstring(n, AUTODOC_DTOR, tab8), "\n", NIL);
	if (have_pythonprepend(n))
	  Printv(f_shadow, indent_pythoncode(pythonprepend(n), tab8, Getfile(n), Getline(n), "%pythonprepend or %feature(\"pythonprepend\")"), "\n", NIL);
#ifdef USE_THISOWN
	Printv(f_shadow, tab8, "try:\n", NIL);
	Printv(f_shadow, tab8, tab4, "if self.thisown:", module, ".", Swig_name_destroy(NSPACE_TODO, symname), "(self)\n", NIL);
	Printv(f_shadow, tab8, "except __builtin__.Exception: pass\n", NIL);
#else
#endif
	if (have_pythonappend(n))
	  Printv(f_shadow, indent_pythoncode(pythonappend(n), tab8, Getfile(n), Getline(n), "%pythonappend or %feature(\"pythonappend\")"), "\n", NIL);
	Printv(f_shadow, tab8, "pass\n", NIL);
	Printv(f_shadow, "\n", NIL);
      }
    }
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * membervariableHandler()
   * ------------------------------------------------------------ */

  virtual int membervariableHandler(Node *n) {
    String *symname = Getattr(n, "sym:name");

    int oldshadow = shadow;
    if (shadow)
      shadow = shadow | PYSHADOW_MEMBER;
    Language::membervariableHandler(n);
    shadow = oldshadow;

    if (shadow && !builtin) {
      String *mname = Swig_name_member(NSPACE_TODO, class_name, symname);
      String *setname = Swig_name_set(NSPACE_TODO, mname);
      String *getname = Swig_name_get(NSPACE_TODO, mname);
      int assignable = is_assignable(n);
      if (!modern) {
	if (assignable) {
	  Printv(f_shadow, tab4, "__swig_setmethods__[\"", symname, "\"] = ", module, ".", setname, "\n", NIL);
	}
	Printv(f_shadow, tab4, "__swig_getmethods__[\"", symname, "\"] = ", module, ".", getname, "\n", NIL);
      }
      if (!classic) {
	if (!modern)
	  Printv(f_shadow, tab4, "if _newclass:\n", tab4, NIL);
	Printv(f_shadow, tab4, symname, " = _swig_property(", module, ".", getname, NIL);
	if (assignable)
	  Printv(f_shadow, ", ", module, ".", setname, NIL);
	Printv(f_shadow, ")\n", NIL);
      }
      Delete(mname);
      Delete(setname);
      Delete(getname);
    }

    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * staticmembervariableHandler()
   * ------------------------------------------------------------ */

  virtual int staticmembervariableHandler(Node *n) {
    Swig_save("builtin_staticmembervariableHandler", n, "builtin_symname", NIL);
    Language::staticmembervariableHandler(n);
    Swig_restore(n);

    if (GetFlag(n, "wrappedasconstant"))
      return SWIG_OK;

    String *symname = Getattr(n, "sym:name");

    if (shadow) {
      if (!builtin && GetFlag(n, "hasconsttype")) {
	String *mname = Swig_name_member(NSPACE_TODO, class_name, symname);
	Printf(f_shadow_stubs, "%s.%s = %s.%s.%s\n", class_name, symname, module, global_name, mname);
	Delete(mname);
      } else {
	String *mname = Swig_name_member(NSPACE_TODO, class_name, symname);
	String *getname = Swig_name_get(NSPACE_TODO, mname);
	String *wrapgetname = Swig_name_wrapper(getname);
	String *vargetname = NewStringf("Swig_var_%s", getname);
	String *setname = Swig_name_set(NSPACE_TODO, mname);
	String *wrapsetname = Swig_name_wrapper(setname);
	String *varsetname = NewStringf("Swig_var_%s", setname);

	Wrapper *f = NewWrapper();
	Printv(f->def, "SWIGINTERN PyObject *", wrapgetname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *SWIGUNUSEDPARM(args)) {", NIL);
	Printv(f->code, "  return ", vargetname, "();\n", NIL);
	Append(f->code, "}\n");
	add_method(getname, wrapgetname, 0);
	Wrapper_print(f, f_wrappers);
	DelWrapper(f);
	int assignable = is_assignable(n);
	if (assignable) {
	  int funpack = modernargs && fastunpack;
	  Wrapper *f = NewWrapper();
	  Printv(f->def, "SWIGINTERN PyObject *", wrapsetname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {", NIL);
	  Wrapper_add_local(f, "res", "int res");
	  if (!funpack) {
	    Wrapper_add_local(f, "value", "PyObject *value");
	    Append(f->code, "if (!PyArg_ParseTuple(args,(char *)\"O:set\",&value)) return NULL;\n");
	  }
	  Printf(f->code, "res = %s(%s);\n", varsetname, funpack ? "args" : "value");
	  Append(f->code, "return !res ? SWIG_Py_Void() : NULL;\n");
	  Append(f->code, "}\n");
	  Wrapper_print(f, f_wrappers);
	  add_method(setname, wrapsetname, 0, 0, funpack, 1, 1);
	  DelWrapper(f);
	}
	if (!modern && !builtin) {
	  if (assignable) {
	    Printv(f_shadow, tab4, "__swig_setmethods__[\"", symname, "\"] = ", module, ".", setname, "\n", NIL);
	  }
	  Printv(f_shadow, tab4, "__swig_getmethods__[\"", symname, "\"] = ", module, ".", getname, "\n", NIL);
	}
	if (!classic && !builtin) {
	  if (!modern)
	    Printv(f_shadow, tab4, "if _newclass:\n", tab4, NIL);
	  Printv(f_shadow, tab4, symname, " = _swig_property(", module, ".", getname, NIL);
	  if (assignable)
	    Printv(f_shadow, ", ", module, ".", setname, NIL);
	  Printv(f_shadow, ")\n", NIL);
	}
	String *getter = Getattr(n, "pybuiltin:getter");
	String *setter = Getattr(n, "pybuiltin:setter");
	Hash *h = NULL;
	if (getter || setter) {
	  h = Getattr(builtin_getset, symname);
	  if (!h) {
	    h = NewHash();
	    Setattr(h, "static", "1");
	    Setattr(builtin_getset, symname, h);
	  }
	}
	if (getter)
	  Setattr(h, "getter", getter);
	if (setter)
	  Setattr(h, "setter", setter);
	if (h)
	  Delete(h);
	Delete(mname);
	Delete(getname);
	Delete(wrapgetname);
	Delete(vargetname);
	Delete(setname);
	Delete(wrapsetname);
	Delete(varsetname);
      }
    }
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * memberconstantHandler()
   * ------------------------------------------------------------ */

  virtual int memberconstantHandler(Node *n) {
    String *symname = Getattr(n, "sym:name");
    if (builtin && in_class) {
      Swig_save("builtin_memberconstantHandler", n, "pybuiltin:symname", NIL);
      Setattr(n, "pybuiltin:symname", symname);
    }
    int oldshadow = shadow;
    if (shadow)
      shadow = shadow | PYSHADOW_MEMBER;
    Language::memberconstantHandler(n);
    shadow = oldshadow;

    if (builtin && in_class) {
      Swig_restore(n);
    } else if (shadow) {
      Printv(f_shadow, tab4, symname, " = ", module, ".", Swig_name_member(NSPACE_TODO, class_name, symname), "\n", NIL);
    }
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * insertDirective()
   * 
   * Hook for %insert directive.   We're going to look for special %shadow inserts
   * as a special case so we can do indenting correctly
   * ------------------------------------------------------------ */

  virtual int insertDirective(Node *n) {
    String *code = Getattr(n, "code");
    String *section = Getattr(n, "section");

    if (!ImportMode && (Cmp(section, "python") == 0 || Cmp(section, "shadow") == 0)) {
      if (shadow) {
	String *pycode = indent_pythoncode(code, shadow_indent, Getfile(n), Getline(n), "%pythoncode or %insert(\"python\") block");
	Printv(f_shadow, pycode, NIL);
	Delete(pycode);
      }
    } else if (!ImportMode && (Cmp(section, "pythonbegin") == 0)) {
      String *pycode = indent_pythoncode(code, "", Getfile(n), Getline(n), "%pythonbegin or %insert(\"pythonbegin\") block");
      Printv(f_shadow_begin, pycode, NIL);
      Delete(pycode);
    } else {
      Language::insertDirective(n);
    }
    return SWIG_OK;
  }

  virtual String *runtimeCode() {
    String *s = NewString("");
    String *shead = Swig_include_sys("pyhead.swg");
    if (!shead) {
      Printf(stderr, "*** Unable to open 'pyhead.swg'\n");
    } else {
      Append(s, shead);
      Delete(shead);
    }
    String *serrors = Swig_include_sys("pyerrors.swg");
    if (!serrors) {
      Printf(stderr, "*** Unable to open 'pyerrors.swg'\n");
    } else {
      Append(s, serrors);
      Delete(serrors);
    }
    String *sthread = Swig_include_sys("pythreads.swg");
    if (!sthread) {
      Printf(stderr, "*** Unable to open 'pythreads.swg'\n");
    } else {
      Append(s, sthread);
      Delete(sthread);
    }
    String *sapi = Swig_include_sys("pyapi.swg");
    if (!sapi) {
      Printf(stderr, "*** Unable to open 'pyapi.swg'\n");
    } else {
      Append(s, sapi);
      Delete(sapi);
    }
    String *srun = Swig_include_sys("pyrun.swg");
    if (!srun) {
      Printf(stderr, "*** Unable to open 'pyrun.swg'\n");
    } else {
      Append(s, srun);
      Delete(srun);
    }
    return s;
  }

  virtual String *defaultExternalRuntimeFilename() {
    return NewString("swigpyrun.h");
  }

  /*----------------------------------------------------------------------
   * kwargsSupport()
   *--------------------------------------------------------------------*/

  bool kwargsSupport() const {
    return true;
  }
};

/* ---------------------------------------------------------------
 * classDirectorMethod()
 *
 * Emit a virtual director method to pass a method call on to the 
 * underlying Python object.
 *
 * ** Moved it here due to internal error on gcc-2.96 **
 * --------------------------------------------------------------- */
int PYTHON::classDirectorMethods(Node *n) {
  director_method_index = 0;
  return Language::classDirectorMethods(n);
}


int PYTHON::classDirectorMethod(Node *n, Node *parent, String *super) {
  int is_void = 0;
  int is_pointer = 0;
  String *decl = Getattr(n, "decl");
  String *name = Getattr(n, "name");
  String *classname = Getattr(parent, "sym:name");
  String *c_classname = Getattr(parent, "name");
  String *symname = Getattr(n, "sym:name");
  String *declaration = NewString("");
  ParmList *l = Getattr(n, "parms");
  Wrapper *w = NewWrapper();
  String *tm;
  String *wrap_args = NewString("");
  String *returntype = Getattr(n, "type");
  String *value = Getattr(n, "value");
  String *storage = Getattr(n, "storage");
  bool pure_virtual = false;
  int status = SWIG_OK;
  int idx;
  bool ignored_method = GetFlag(n, "feature:ignore") ? true : false;

  if (builtin) {
    // Rename any wrapped parameters called 'self' as the generated code contains a variable with same name
    Parm *p;
    for (p = l; p; p = nextSibling(p)) {
      String *arg = Getattr(p, "name");
      if (arg && Cmp(arg, "self") == 0)
	Delattr(p, "name");
    }
  }

  if (Cmp(storage, "virtual") == 0) {
    if (Cmp(value, "0") == 0) {
      pure_virtual = true;
    }
  }

  /* determine if the method returns a pointer */
  is_pointer = SwigType_ispointer_return(decl);
  is_void = (!Cmp(returntype, "void") && !is_pointer);

  /* virtual method definition */
  String *target;
  String *pclassname = NewStringf("SwigDirector_%s", classname);
  String *qualified_name = NewStringf("%s::%s", pclassname, name);
  SwigType *rtype = Getattr(n, "conversion_operator") ? 0 : Getattr(n, "classDirectorMethods:type");
  target = Swig_method_decl(rtype, decl, qualified_name, l, 0, 0);
  Printf(w->def, "%s", target);
  Delete(qualified_name);
  Delete(target);
  /* header declaration */
  target = Swig_method_decl(rtype, decl, name, l, 0, 1);
  Printf(declaration, "    virtual %s", target);
  Delete(target);

  // Get any exception classes in the throws typemap
  ParmList *throw_parm_list = 0;

  if ((throw_parm_list = Getattr(n, "throws")) || Getattr(n, "throw")) {
    Parm *p;
    int gencomma = 0;

    Append(w->def, " throw(");
    Append(declaration, " throw(");

    if (throw_parm_list)
      Swig_typemap_attach_parms("throws", throw_parm_list, 0);
    for (p = throw_parm_list; p; p = nextSibling(p)) {
      if (Getattr(p, "tmap:throws")) {
	if (gencomma++) {
	  Append(w->def, ", ");
	  Append(declaration, ", ");
	}
	String *str = SwigType_str(Getattr(p, "type"), 0);
	Append(w->def, str);
	Append(declaration, str);
	Delete(str);
      }
    }

    Append(w->def, ")");
    Append(declaration, ")");
  }

  Append(w->def, " {");
  Append(declaration, ";\n");

  /* declare method return value 
   * if the return value is a reference or const reference, a specialized typemap must
   * handle it, including declaration of c_result ($result).
   */
  if (!is_void) {
    if (!(ignored_method && !pure_virtual)) {
      String *cres = SwigType_lstr(returntype, "c_result");
      Printf(w->code, "%s;\n", cres);
      Delete(cres);
    }
  }

  if (builtin) {
    Printv(w->code, "PyObject *self = NULL;\n", NIL);
    Printv(w->code, "(void)self;\n", NIL);
  }

  if (ignored_method) {
    if (!pure_virtual) {
      if (!is_void)
	Printf(w->code, "return ");
      String *super_call = Swig_method_call(super, l);
      Printf(w->code, "%s;\n", super_call);
      Delete(super_call);
    } else {
      Printf(w->code, "Swig::DirectorPureVirtualException::raise(\"Attempted to invoke pure virtual method %s::%s\");\n", SwigType_namestr(c_classname),
	     SwigType_namestr(name));
    }
  } else {
    /* attach typemaps to arguments (C/C++ -> Python) */
    String *arglist = NewString("");
    String *parse_args = NewString("");

    Swig_director_parms_fixup(l);

    /* remove the wrapper 'w' since it was producing spurious temps */
    Swig_typemap_attach_parms("in", l, 0);
    Swig_typemap_attach_parms("directorin", l, 0);
    Swig_typemap_attach_parms("directorargout", l, w);

    Parm *p;
    char source[256];

    int outputs = 0;
    if (!is_void)
      outputs++;

    /* build argument list and type conversion string */
    idx = 0;
    p = l;
    int use_parse = 0;
    while (p) {
      if (checkAttribute(p, "tmap:in:numinputs", "0")) {
	p = Getattr(p, "tmap:in:next");
	continue;
      }

      /* old style?  caused segfaults without the p!=0 check
         in the for() condition, and seems dangerous in the
         while loop as well.
         while (Getattr(p, "tmap:ignore")) {
         p = Getattr(p, "tmap:ignore:next");
         }
       */

      if (Getattr(p, "tmap:directorargout") != 0)
	outputs++;

      String *pname = Getattr(p, "name");
      String *ptype = Getattr(p, "type");

      Putc(',', arglist);
      if ((tm = Getattr(p, "tmap:directorin")) != 0) {
	String *parse = Getattr(p, "tmap:directorin:parse");
	if (!parse) {
	  sprintf(source, "obj%d", idx++);
	  String *input = NewString(source);
	  Setattr(p, "emit:directorinput", input);
	  Replaceall(tm, "$input", input);
	  Delete(input);
	  Replaceall(tm, "$owner", "0");
	  /* Wrapper_add_localv(w, source, "swig::SwigVar_PyObject", source, "= 0", NIL); */
	  Printv(wrap_args, "swig::SwigVar_PyObject ", source, ";\n", NIL);

	  Printv(wrap_args, tm, "\n", NIL);
	  Printv(arglist, "(PyObject *)", source, NIL);
	  Putc('O', parse_args);
	} else {
	  use_parse = 1;
	  Append(parse_args, parse);
	  Setattr(p, "emit:directorinput", pname);
	  Replaceall(tm, "$input", pname);
	  Replaceall(tm, "$owner", "0");
	  if (Len(tm) == 0)
	    Append(tm, pname);
	  Append(arglist, tm);
	}
	p = Getattr(p, "tmap:directorin:next");
	continue;
      } else if (Cmp(ptype, "void")) {
	/* special handling for pointers to other C++ director classes.
	 * ideally this would be left to a typemap, but there is currently no
	 * way to selectively apply the dynamic_cast<> to classes that have
	 * directors.  in other words, the type "SwigDirector_$1_lname" only exists
	 * for classes with directors.  we avoid the problem here by checking
	 * module.wrap::directormap, but it's not clear how to get a typemap to
	 * do something similar.  perhaps a new default typemap (in addition
	 * to SWIGTYPE) called DIRECTORTYPE?
	 */
	if (SwigType_ispointer(ptype) || SwigType_isreference(ptype)) {
	  Node *module = Getattr(parent, "module");
	  Node *target = Swig_directormap(module, ptype);
	  sprintf(source, "obj%d", idx++);
	  String *nonconst = 0;
	  /* strip pointer/reference --- should move to Swig/stype.c */
	  String *nptype = NewString(Char(ptype) + 2);
	  /* name as pointer */
	  String *ppname = Copy(pname);
	  if (SwigType_isreference(ptype)) {
	    Insert(ppname, 0, "&");
	  }
	  /* if necessary, cast away const since Python doesn't support it! */
	  if (SwigType_isconst(nptype)) {
	    nonconst = NewStringf("nc_tmp_%s", pname);
	    String *nonconst_i = NewStringf("= const_cast< %s >(%s)", SwigType_lstr(ptype, 0), ppname);
	    Wrapper_add_localv(w, nonconst, SwigType_lstr(ptype, 0), nonconst, nonconst_i, NIL);
	    Delete(nonconst_i);
	    Swig_warning(WARN_LANG_DISCARD_CONST, input_file, line_number,
			 "Target language argument '%s' discards const in director method %s::%s.\n",
			 SwigType_str(ptype, pname), SwigType_namestr(c_classname), SwigType_namestr(name));
	  } else {
	    nonconst = Copy(ppname);
	  }
	  Delete(nptype);
	  Delete(ppname);
	  String *mangle = SwigType_manglestr(ptype);
	  if (target) {
	    String *director = NewStringf("director_%s", mangle);
	    Wrapper_add_localv(w, director, "Swig::Director *", director, "= 0", NIL);
	    Wrapper_add_localv(w, source, "swig::SwigVar_PyObject", source, "= 0", NIL);
	    Printf(wrap_args, "%s = SWIG_DIRECTOR_CAST(%s);\n", director, nonconst);
	    Printf(wrap_args, "if (!%s) {\n", director);
	    Printf(wrap_args, "%s = SWIG_InternalNewPointerObj(%s, SWIGTYPE%s, 0);\n", source, nonconst, mangle);
	    Append(wrap_args, "} else {\n");
	    Printf(wrap_args, "%s = %s->swig_get_self();\n", source, director);
	    Printf(wrap_args, "Py_INCREF((PyObject *)%s);\n", source);
	    Append(wrap_args, "}\n");
	    Delete(director);
	    Printv(arglist, source, NIL);
	  } else {
	    Wrapper_add_localv(w, source, "swig::SwigVar_PyObject", source, "= 0", NIL);
	    Printf(wrap_args, "%s = SWIG_InternalNewPointerObj(%s, SWIGTYPE%s, 0);\n", source, nonconst, mangle);
	    //Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE_p_%s, 0);\n", 
	    //       source, nonconst, base);
	    Printv(arglist, source, NIL);
	  }
	  Putc('O', parse_args);
	  Delete(mangle);
	  Delete(nonconst);
	} else {
	  Swig_warning(WARN_TYPEMAP_DIRECTORIN_UNDEF, input_file, line_number,
		       "Unable to use type %s as a function argument in director method %s::%s (skipping method).\n", SwigType_str(ptype, 0),
		       SwigType_namestr(c_classname), SwigType_namestr(name));
	  status = SWIG_NOWRAP;
	  break;
	}
      }
      p = nextSibling(p);
    }

    /* add the method name as a PyString */
    String *pyname = Getattr(n, "sym:name");

    int allow_thread = threads_enable(n);

    if (allow_thread) {
      thread_begin_block(n, w->code);
      Append(w->code, "{\n");
    }

    /* wrap complex arguments to PyObjects */
    Printv(w->code, wrap_args, NIL);

    /* pass the method call on to the Python object */
    if (dirprot_mode() && !is_public(n)) {
      Printf(w->code, "swig_set_inner(\"%s\", true);\n", name);
    }


    Append(w->code, "if (!swig_get_self()) {\n");
    Printf(w->code, "  Swig::DirectorException::raise(\"'self' uninitialized, maybe you forgot to call %s.__init__.\");\n", classname);
    Append(w->code, "}\n");
    Append(w->code, "#if defined(SWIG_PYTHON_DIRECTOR_VTABLE)\n");
    Printf(w->code, "const size_t swig_method_index = %d;\n", director_method_index++);
    Printf(w->code, "const char *const swig_method_name = \"%s\";\n", pyname);

    Append(w->code, "PyObject *method = swig_get_method(swig_method_index, swig_method_name);\n");
    if (Len(parse_args) > 0) {
      if (use_parse || !modernargs) {
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_CallFunction(method, (char *)\"(%s)\" %s);\n", Swig_cresult_name(), parse_args, arglist);
      } else {
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_CallFunctionObjArgs(method %s, NULL);\n", Swig_cresult_name(), arglist);
      }
    } else {
      if (modernargs) {
	Append(w->code, "swig::SwigVar_PyObject args = PyTuple_New(0);\n");
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_Call(method, (PyObject *) args, NULL);\n", Swig_cresult_name());
      } else {
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_CallFunction(method, NULL, NULL);\n", Swig_cresult_name());
      }
    }
    Append(w->code, "#else\n");
    if (Len(parse_args) > 0) {
      if (use_parse || !modernargs) {
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_CallMethod(swig_get_self(), (char *)\"%s\", (char *)\"(%s)\" %s);\n", Swig_cresult_name(), pyname, parse_args, arglist);
      } else {
	Printf(w->code, "swig::SwigVar_PyObject swig_method_name = SWIG_Python_str_FromChar((char *)\"%s\");\n", pyname);
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_CallMethodObjArgs(swig_get_self(), (PyObject *) swig_method_name %s, NULL);\n", Swig_cresult_name(), arglist);
      }
    } else {
      if (!modernargs) {
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_CallMethod(swig_get_self(), (char *) \"%s\", NULL);\n", Swig_cresult_name(), pyname);
      } else {
	Printf(w->code, "swig::SwigVar_PyObject swig_method_name = SWIG_Python_str_FromChar((char *)\"%s\");\n", pyname);
	Printf(w->code, "swig::SwigVar_PyObject %s = PyObject_CallMethodObjArgs(swig_get_self(), (PyObject *) swig_method_name, NULL);\n", Swig_cresult_name());
      }
    }
    Append(w->code, "#endif\n");

    if (dirprot_mode() && !is_public(n))
      Printf(w->code, "swig_set_inner(\"%s\", false);\n", name);

    /* exception handling */
    tm = Swig_typemap_lookup("director:except", n, Swig_cresult_name(), 0);
    if (!tm) {
      tm = Getattr(n, "feature:director:except");
      if (tm)
	tm = Copy(tm);
    }
    Printf(w->code, "if (!%s) {\n", Swig_cresult_name());
    Append(w->code, "  PyObject *error = PyErr_Occurred();\n");
    if ((tm) && Len(tm) && (Strcmp(tm, "1") != 0)) {
      Replaceall(tm, "$error", "error");
      Printv(w->code, Str(tm), "\n", NIL);
    } else {
      Append(w->code, "  if (error) {\n");
      Printf(w->code, "    Swig::DirectorMethodException::raise(\"Error detected when calling '%s.%s'\");\n", classname, pyname);
      Append(w->code, "  }\n");
    }
    Append(w->code, "}\n");
    Delete(tm);

    /*
     * Python method may return a simple object, or a tuple.
     * for in/out aruments, we have to extract the appropriate PyObjects from the tuple,
     * then marshal everything back to C/C++ (return value and output arguments).
     *
     */

    /* marshal return value and other outputs (if any) from PyObject to C/C++ type */

    String *cleanup = NewString("");
    String *outarg = NewString("");

    if (outputs > 1) {
      Wrapper_add_local(w, "output", "PyObject *output");
      Printf(w->code, "if (!PyTuple_Check(%s)) {\n", Swig_cresult_name());
      Printf(w->code, "  Swig::DirectorTypeMismatchException::raise(\"Python method %s.%sfailed to return a tuple.\");\n", classname, pyname);
      Append(w->code, "}\n");
    }

    idx = 0;

    /* marshal return value */
    if (!is_void) {
      tm = Swig_typemap_lookup("directorout", n, Swig_cresult_name(), w);
      if (tm != 0) {
	if (outputs > 1) {
	  Printf(w->code, "output = PyTuple_GetItem(%s, %d);\n", Swig_cresult_name(), idx++);
	  Replaceall(tm, "$input", "output");
	} else {
	  Replaceall(tm, "$input", Swig_cresult_name());
	}
	char temp[24];
	sprintf(temp, "%d", idx);
	Replaceall(tm, "$argnum", temp);

	/* TODO check this */
	if (Getattr(n, "wrap:disown")) {
	  Replaceall(tm, "$disown", "SWIG_POINTER_DISOWN");
	} else {
	  Replaceall(tm, "$disown", "0");
	}
	if (Getattr(n, "tmap:directorout:implicitconv")) {
	  Replaceall(tm, "$implicitconv", get_implicitconv_flag(n));
	}
	Replaceall(tm, "$result", "c_result");
	Printv(w->code, tm, "\n", NIL);
	Delete(tm);
      } else {
	Swig_warning(WARN_TYPEMAP_DIRECTOROUT_UNDEF, input_file, line_number,
		     "Unable to use return type %s in director method %s::%s (skipping method).\n", SwigType_str(returntype, 0), SwigType_namestr(c_classname),
		     SwigType_namestr(name));
	status = SWIG_ERROR;
      }
    }

    /* marshal outputs */
    for (p = l; p;) {
      if ((tm = Getattr(p, "tmap:directorargout")) != 0) {
	if (outputs > 1) {
	  Printf(w->code, "output = PyTuple_GetItem(%s, %d);\n", Swig_cresult_name(), idx++);
	  Replaceall(tm, "$result", "output");
	} else {
	  Replaceall(tm, "$result", Swig_cresult_name());
	}
	Replaceall(tm, "$input", Getattr(p, "emit:directorinput"));
	Printv(w->code, tm, "\n", NIL);
	p = Getattr(p, "tmap:directorargout:next");
      } else {
	p = nextSibling(p);
      }
    }

    /* any existing helper functions to handle this? */
    if (allow_thread) {
      Append(w->code, "}\n");
      thread_end_block(n, w->code);
    }

    Delete(parse_args);
    Delete(arglist);
    Delete(cleanup);
    Delete(outarg);
  }

  if (!is_void) {
    if (!(ignored_method && !pure_virtual)) {
      String *rettype = SwigType_str(returntype, 0);
      if (!SwigType_isreference(returntype)) {
	Printf(w->code, "return (%s) c_result;\n", rettype);
      } else {
	Printf(w->code, "return (%s) *c_result;\n", rettype);
      }
      Delete(rettype);
    }
  }

  Append(w->code, "}\n");

  // We expose protected methods via an extra public inline method which makes a straight call to the wrapped class' method
  String *inline_extra_method = NewString("");
  if (dirprot_mode() && !is_public(n) && !pure_virtual) {
    Printv(inline_extra_method, declaration, NIL);
    String *extra_method_name = NewStringf("%sSwigPublic", name);
    Replaceall(inline_extra_method, name, extra_method_name);
    Replaceall(inline_extra_method, ";\n", " {\n      ");
    if (!is_void)
      Printf(inline_extra_method, "return ");
    String *methodcall = Swig_method_call(super, l);
    Printv(inline_extra_method, methodcall, ";\n    }\n", NIL);
    Delete(methodcall);
    Delete(extra_method_name);
  }

  /* emit the director method */
  if (status == SWIG_OK) {
    if (!Getattr(n, "defaultargs")) {
      Replaceall(w->code, "$symname", symname);
      Wrapper_print(w, f_directors);
      Printv(f_directors_h, declaration, NIL);
      Printv(f_directors_h, inline_extra_method, NIL);
    }
  }

  /* clean up */
  Delete(wrap_args);
  Delete(pclassname);
  DelWrapper(w);
  return status;
}

/* -----------------------------------------------------------------------------
 * swig_python()    - Instantiate module
 * ----------------------------------------------------------------------------- */

static Language *new_swig_python() {
  return new PYTHON();
}
extern "C" Language *swig_python(void) {
  return new_swig_python();
}