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| <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25z"/></svg> |
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| |
| <h1 id="module-isortio">Module isort.io</h1> |
| <p>Defines any IO utilities used by isort</p> |
| <p>None</p> |
| <details class="example"> |
| <summary>View Source</summary> |
| <div class="codehilite"><pre><span></span><code><span class="sd">"""Defines any IO utilities used by isort"""</span> |
| |
| <span class="kn">import</span> <span class="nn">re</span> |
| |
| <span class="kn">import</span> <span class="nn">tokenize</span> |
| |
| <span class="kn">from</span> <span class="nn">contextlib</span> <span class="kn">import</span> <span class="n">contextmanager</span> |
| |
| <span class="kn">from</span> <span class="nn">io</span> <span class="kn">import</span> <span class="n">BytesIO</span><span class="p">,</span> <span class="n">StringIO</span><span class="p">,</span> <span class="n">TextIOWrapper</span> |
| |
| <span class="kn">from</span> <span class="nn">pathlib</span> <span class="kn">import</span> <span class="n">Path</span> |
| |
| <span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Any</span><span class="p">,</span> <span class="n">Callable</span><span class="p">,</span> <span class="n">Iterator</span><span class="p">,</span> <span class="n">TextIO</span><span class="p">,</span> <span class="n">Union</span> |
| |
| <span class="kn">from</span> <span class="nn">isort._future</span> <span class="kn">import</span> <span class="n">dataclass</span> |
| |
| <span class="kn">from</span> <span class="nn">isort.exceptions</span> <span class="kn">import</span> <span class="n">UnsupportedEncoding</span> |
| |
| <span class="n">_ENCODING_PATTERN</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="sa">rb</span><span class="s2">"^[ \t\f]*#.*?coding[:=][ \t]*([-_.a-zA-Z0-9]+)"</span><span class="p">)</span> |
| |
| <span class="nd">@dataclass</span><span class="p">(</span><span class="n">frozen</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> |
| |
| <span class="k">class</span> <span class="nc">File</span><span class="p">:</span> |
| |
| <span class="n">stream</span><span class="p">:</span> <span class="n">TextIO</span> |
| |
| <span class="n">path</span><span class="p">:</span> <span class="n">Path</span> |
| |
| <span class="n">encoding</span><span class="p">:</span> <span class="nb">str</span> |
| |
| <span class="nd">@staticmethod</span> |
| |
| <span class="k">def</span> <span class="nf">detect_encoding</span><span class="p">(</span><span class="n">filename</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Path</span><span class="p">],</span> <span class="n">readline</span><span class="p">:</span> <span class="n">Callable</span><span class="p">[[],</span> <span class="nb">bytes</span><span class="p">])</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> |
| |
| <span class="k">try</span><span class="p">:</span> |
| |
| <span class="k">return</span> <span class="n">tokenize</span><span class="o">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">readline</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span> |
| |
| <span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span> |
| |
| <span class="k">raise</span> <span class="n">UnsupportedEncoding</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span> |
| |
| <span class="nd">@staticmethod</span> |
| |
| <span class="k">def</span> <span class="nf">from_contents</span><span class="p">(</span><span class="n">contents</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">filename</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="s2">"File"</span><span class="p">:</span> |
| |
| <span class="n">encoding</span> <span class="o">=</span> <span class="n">File</span><span class="o">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="n">BytesIO</span><span class="p">(</span><span class="n">contents</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s2">"utf-8"</span><span class="p">))</span><span class="o">.</span><span class="n">readline</span><span class="p">)</span> |
| |
| <span class="k">return</span> <span class="n">File</span><span class="p">(</span> <span class="c1"># type: ignore</span> |
| |
| <span class="n">stream</span><span class="o">=</span><span class="n">StringIO</span><span class="p">(</span><span class="n">contents</span><span class="p">),</span> <span class="n">path</span><span class="o">=</span><span class="n">Path</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span><span class="o">.</span><span class="n">resolve</span><span class="p">(),</span> <span class="n">encoding</span><span class="o">=</span><span class="n">encoding</span> |
| |
| <span class="p">)</span> |
| |
| <span class="nd">@property</span> |
| |
| <span class="k">def</span> <span class="nf">extension</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> |
| |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">suffix</span><span class="o">.</span><span class="n">lstrip</span><span class="p">(</span><span class="s2">"."</span><span class="p">)</span> |
| |
| <span class="nd">@staticmethod</span> |
| |
| <span class="k">def</span> <span class="nf">_open</span><span class="p">(</span><span class="n">filename</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Path</span><span class="p">])</span> <span class="o">-></span> <span class="n">TextIOWrapper</span><span class="p">:</span> |
| |
| <span class="sd">"""Open a file in read only mode using the encoding detected by</span> |
| |
| <span class="sd"> detect_encoding().</span> |
| |
| <span class="sd"> """</span> |
| |
| <span class="n">buffer</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s2">"rb"</span><span class="p">)</span> |
| |
| <span class="k">try</span><span class="p">:</span> |
| |
| <span class="n">encoding</span> <span class="o">=</span> <span class="n">File</span><span class="o">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="n">buffer</span><span class="o">.</span><span class="n">readline</span><span class="p">)</span> |
| |
| <span class="n">buffer</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> |
| |
| <span class="n">text</span> <span class="o">=</span> <span class="n">TextIOWrapper</span><span class="p">(</span><span class="n">buffer</span><span class="p">,</span> <span class="n">encoding</span><span class="p">,</span> <span class="n">line_buffering</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="s2">""</span><span class="p">)</span> |
| |
| <span class="n">text</span><span class="o">.</span><span class="n">mode</span> <span class="o">=</span> <span class="s2">"r"</span> <span class="c1"># type: ignore</span> |
| |
| <span class="k">return</span> <span class="n">text</span> |
| |
| <span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span> |
| |
| <span class="n">buffer</span><span class="o">.</span><span class="n">close</span><span class="p">()</span> |
| |
| <span class="k">raise</span> |
| |
| <span class="nd">@staticmethod</span> |
| |
| <span class="nd">@contextmanager</span> |
| |
| <span class="k">def</span> <span class="nf">read</span><span class="p">(</span><span class="n">filename</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Path</span><span class="p">])</span> <span class="o">-></span> <span class="n">Iterator</span><span class="p">[</span><span class="s2">"File"</span><span class="p">]:</span> |
| |
| <span class="n">file_path</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span><span class="o">.</span><span class="n">resolve</span><span class="p">()</span> |
| |
| <span class="n">stream</span> <span class="o">=</span> <span class="kc">None</span> |
| |
| <span class="k">try</span><span class="p">:</span> |
| |
| <span class="n">stream</span> <span class="o">=</span> <span class="n">File</span><span class="o">.</span><span class="n">_open</span><span class="p">(</span><span class="n">file_path</span><span class="p">)</span> |
| |
| <span class="k">yield</span> <span class="n">File</span><span class="p">(</span><span class="n">stream</span><span class="o">=</span><span class="n">stream</span><span class="p">,</span> <span class="n">path</span><span class="o">=</span><span class="n">file_path</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="n">stream</span><span class="o">.</span><span class="n">encoding</span><span class="p">)</span> <span class="c1"># type: ignore</span> |
| |
| <span class="k">finally</span><span class="p">:</span> |
| |
| <span class="k">if</span> <span class="n">stream</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| |
| <span class="n">stream</span><span class="o">.</span><span class="n">close</span><span class="p">()</span> |
| |
| <span class="k">class</span> <span class="nc">_EmptyIO</span><span class="p">(</span><span class="n">StringIO</span><span class="p">):</span> |
| |
| <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">:</span> <span class="n">Any</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> <span class="c1"># type: ignore # skipcq: PTC-W0049</span> |
| |
| <span class="k">pass</span> |
| |
| <span class="n">Empty</span> <span class="o">=</span> <span class="n">_EmptyIO</span><span class="p">()</span> |
| </code></pre></div> |
| |
| </details> |
| <h2 id="variables">Variables</h2> |
| <div class="codehilite"><pre><span></span><code><span class="n">Empty</span> |
| </code></pre></div> |
| |
| <h2 id="classes">Classes</h2> |
| <h3 id="file">File</h3> |
| <div class="codehilite"><pre><span></span><code><span class="k">class</span> <span class="nc">File</span><span class="p">(</span> |
| <span class="n">stream</span><span class="p">:</span> <span class="o"><</span><span class="k">class</span> <span class="err">'</span><span class="nc">TextIO</span><span class="s1">'>,</span> |
| <span class="n">path</span><span class="p">:</span> <span class="n">pathlib</span><span class="o">.</span><span class="n">Path</span><span class="p">,</span> |
| <span class="n">encoding</span><span class="p">:</span> <span class="nb">str</span> |
| <span class="p">)</span> |
| </code></pre></div> |
| |
| <details class="example"> |
| <summary>View Source</summary> |
| <div class="codehilite"><pre><span></span><code><span class="nv">@dataclass</span><span class="p">(</span><span class="n">frozen</span><span class="o">=</span><span class="k">True</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="k">class</span><span class="w"> </span><span class="k">File</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nl">stream</span><span class="p">:</span><span class="w"> </span><span class="n">TextIO</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">path</span><span class="err">:</span><span class="w"> </span><span class="k">Path</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nl">encoding</span><span class="p">:</span><span class="w"> </span><span class="nf">str</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nv">@staticmethod</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="n">detect_encoding</span><span class="p">(</span><span class="nl">filename</span><span class="p">:</span><span class="w"> </span><span class="ow">Union</span><span class="o">[</span><span class="n">str, Path</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="nl">readline</span><span class="p">:</span><span class="w"> </span><span class="n">Callable</span><span class="o">[</span><span class="n">[</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">bytes</span><span class="err">]</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="nf">str</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">try</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">tokenize</span><span class="p">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">readline</span><span class="p">)</span><span class="o">[</span><span class="n">0</span><span class="o">]</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="ow">except</span><span class="w"> </span><span class="k">Exception</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">raise</span><span class="w"> </span><span class="n">UnsupportedEncoding</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nv">@staticmethod</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="n">from_contents</span><span class="p">(</span><span class="nl">contents</span><span class="p">:</span><span class="w"> </span><span class="nf">str</span><span class="p">,</span><span class="w"> </span><span class="nl">filename</span><span class="p">:</span><span class="w"> </span><span class="nf">str</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="ss">"File"</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">encoding</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">File</span><span class="p">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span><span class="w"> </span><span class="n">BytesIO</span><span class="p">(</span><span class="n">contents</span><span class="p">.</span><span class="n">encode</span><span class="p">(</span><span class="ss">"utf-8"</span><span class="p">)).</span><span class="n">readline</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">File</span><span class="p">(</span><span class="w"> </span><span class="err">#</span><span class="w"> </span><span class="nl">type</span><span class="p">:</span><span class="w"> </span><span class="k">ignore</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="o">=</span><span class="n">StringIO</span><span class="p">(</span><span class="n">contents</span><span class="p">),</span><span class="w"> </span><span class="k">path</span><span class="o">=</span><span class="k">Path</span><span class="p">(</span><span class="n">filename</span><span class="p">).</span><span class="n">resolve</span><span class="p">(),</span><span class="w"> </span><span class="n">encoding</span><span class="o">=</span><span class="n">encoding</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nv">@property</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="n">extension</span><span class="p">(</span><span class="n">self</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="nf">str</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="k">path</span><span class="p">.</span><span class="n">suffix</span><span class="p">.</span><span class="n">lstrip</span><span class="p">(</span><span class="ss">"."</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nv">@staticmethod</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="n">_open</span><span class="p">(</span><span class="nl">filename</span><span class="p">:</span><span class="w"> </span><span class="ow">Union</span><span class="o">[</span><span class="n">str, Path</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="nl">TextIOWrapper</span><span class="p">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="ss">"""Open a file in read only mode using the encoding detected by</span> |
| |
| <span class="ss"> detect_encoding().</span> |
| |
| <span class="ss"> """</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">buffer</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">open</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span><span class="w"> </span><span class="ss">"rb"</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">try</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">encoding</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">File</span><span class="p">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span><span class="w"> </span><span class="n">buffer</span><span class="p">.</span><span class="n">readline</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">buffer</span><span class="p">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nc">text</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">TextIOWrapper</span><span class="p">(</span><span class="n">buffer</span><span class="p">,</span><span class="w"> </span><span class="n">encoding</span><span class="p">,</span><span class="w"> </span><span class="n">line_buffering</span><span class="o">=</span><span class="k">True</span><span class="p">,</span><span class="w"> </span><span class="n">newline</span><span class="o">=</span><span class="ss">""</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nc">text</span><span class="p">.</span><span class="n">mode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ss">"r"</span><span class="w"> </span><span class="err">#</span><span class="w"> </span><span class="nl">type</span><span class="p">:</span><span class="w"> </span><span class="k">ignore</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nc">text</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="ow">except</span><span class="w"> </span><span class="k">Exception</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">buffer</span><span class="p">.</span><span class="k">close</span><span class="p">()</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">raise</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nv">@staticmethod</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nv">@contextmanager</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="k">read</span><span class="p">(</span><span class="nl">filename</span><span class="p">:</span><span class="w"> </span><span class="ow">Union</span><span class="o">[</span><span class="n">str, Path</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="n">Iterator</span><span class="o">[</span><span class="n">"File"</span><span class="o">]</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">file_path</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">Path</span><span class="p">(</span><span class="n">filename</span><span class="p">).</span><span class="n">resolve</span><span class="p">()</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">None</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">try</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">File</span><span class="p">.</span><span class="n">_open</span><span class="p">(</span><span class="n">file_path</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">yield</span><span class="w"> </span><span class="k">File</span><span class="p">(</span><span class="n">stream</span><span class="o">=</span><span class="n">stream</span><span class="p">,</span><span class="w"> </span><span class="k">path</span><span class="o">=</span><span class="n">file_path</span><span class="p">,</span><span class="w"> </span><span class="n">encoding</span><span class="o">=</span><span class="n">stream</span><span class="p">.</span><span class="n">encoding</span><span class="p">)</span><span class="w"> </span><span class="err">#</span><span class="w"> </span><span class="nl">type</span><span class="p">:</span><span class="w"> </span><span class="k">ignore</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nl">finally</span><span class="p">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="k">is</span><span class="w"> </span><span class="ow">not</span><span class="w"> </span><span class="k">None</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="p">.</span><span class="k">close</span><span class="p">()</span><span class="w"></span> |
| </code></pre></div> |
| |
| </details> |
| <hr /> |
| <h4 id="static-methods">Static methods</h4> |
| <h4 id="detect_encoding">detect_encoding</h4> |
| <div class="codehilite"><pre><span></span><code><span class="k">def</span> <span class="nf">detect_encoding</span><span class="p">(</span> |
| <span class="n">filename</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">pathlib</span><span class="o">.</span><span class="n">Path</span><span class="p">],</span> |
| <span class="n">readline</span><span class="p">:</span> <span class="n">Callable</span><span class="p">[[],</span> <span class="nb">bytes</span><span class="p">]</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">str</span> |
| </code></pre></div> |
| |
| <details class="example"> |
| <summary>View Source</summary> |
| <div class="codehilite"><pre><span></span><code><span class="w"> </span><span class="nv">@staticmethod</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="n">detect_encoding</span><span class="p">(</span><span class="nl">filename</span><span class="p">:</span><span class="w"> </span><span class="ow">Union</span><span class="o">[</span><span class="n">str, Path</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="nl">readline</span><span class="p">:</span><span class="w"> </span><span class="n">Callable</span><span class="o">[</span><span class="n">[</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">bytes</span><span class="err">]</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="nf">str</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">try</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">tokenize</span><span class="p">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">readline</span><span class="p">)</span><span class="o">[</span><span class="n">0</span><span class="o">]</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="ow">except</span><span class="w"> </span><span class="k">Exception</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">raise</span><span class="w"> </span><span class="n">UnsupportedEncoding</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span><span class="w"></span> |
| </code></pre></div> |
| |
| </details> |
| <h4 id="from_contents">from_contents</h4> |
| <div class="codehilite"><pre><span></span><code><span class="k">def</span> <span class="nf">from_contents</span><span class="p">(</span> |
| <span class="n">contents</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> |
| <span class="n">filename</span><span class="p">:</span> <span class="nb">str</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="s1">'File'</span> |
| </code></pre></div> |
| |
| <details class="example"> |
| <summary>View Source</summary> |
| <div class="codehilite"><pre><span></span><code><span class="w"> </span><span class="nv">@staticmethod</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="n">from_contents</span><span class="p">(</span><span class="nl">contents</span><span class="p">:</span><span class="w"> </span><span class="nf">str</span><span class="p">,</span><span class="w"> </span><span class="nl">filename</span><span class="p">:</span><span class="w"> </span><span class="nf">str</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="ss">"File"</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">encoding</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">File</span><span class="p">.</span><span class="n">detect_encoding</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span><span class="w"> </span><span class="n">BytesIO</span><span class="p">(</span><span class="n">contents</span><span class="p">.</span><span class="n">encode</span><span class="p">(</span><span class="ss">"utf-8"</span><span class="p">)).</span><span class="n">readline</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">File</span><span class="p">(</span><span class="w"> </span><span class="err">#</span><span class="w"> </span><span class="nl">type</span><span class="p">:</span><span class="w"> </span><span class="k">ignore</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="o">=</span><span class="n">StringIO</span><span class="p">(</span><span class="n">contents</span><span class="p">),</span><span class="w"> </span><span class="k">path</span><span class="o">=</span><span class="k">Path</span><span class="p">(</span><span class="n">filename</span><span class="p">).</span><span class="n">resolve</span><span class="p">(),</span><span class="w"> </span><span class="n">encoding</span><span class="o">=</span><span class="n">encoding</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="p">)</span><span class="w"></span> |
| </code></pre></div> |
| |
| </details> |
| <h4 id="read">read</h4> |
| <div class="codehilite"><pre><span></span><code><span class="k">def</span> <span class="nf">read</span><span class="p">(</span> |
| <span class="n">filename</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">pathlib</span><span class="o">.</span><span class="n">Path</span><span class="p">]</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">Iterator</span><span class="p">[</span><span class="n">ForwardRef</span><span class="p">(</span><span class="s1">'File'</span><span class="p">)]</span> |
| </code></pre></div> |
| |
| <details class="example"> |
| <summary>View Source</summary> |
| <div class="codehilite"><pre><span></span><code><span class="w"> </span><span class="nv">@staticmethod</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nv">@contextmanager</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">def</span><span class="w"> </span><span class="k">read</span><span class="p">(</span><span class="nl">filename</span><span class="p">:</span><span class="w"> </span><span class="ow">Union</span><span class="o">[</span><span class="n">str, Path</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="o">-></span><span class="w"> </span><span class="n">Iterator</span><span class="o">[</span><span class="n">"File"</span><span class="o">]</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">file_path</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">Path</span><span class="p">(</span><span class="n">filename</span><span class="p">).</span><span class="n">resolve</span><span class="p">()</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">None</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">try</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">File</span><span class="p">.</span><span class="n">_open</span><span class="p">(</span><span class="n">file_path</span><span class="p">)</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">yield</span><span class="w"> </span><span class="k">File</span><span class="p">(</span><span class="n">stream</span><span class="o">=</span><span class="n">stream</span><span class="p">,</span><span class="w"> </span><span class="k">path</span><span class="o">=</span><span class="n">file_path</span><span class="p">,</span><span class="w"> </span><span class="n">encoding</span><span class="o">=</span><span class="n">stream</span><span class="p">.</span><span class="n">encoding</span><span class="p">)</span><span class="w"> </span><span class="err">#</span><span class="w"> </span><span class="nl">type</span><span class="p">:</span><span class="w"> </span><span class="k">ignore</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="nl">finally</span><span class="p">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="k">is</span><span class="w"> </span><span class="ow">not</span><span class="w"> </span><span class="k">None</span><span class="err">:</span><span class="w"></span> |
| |
| <span class="w"> </span><span class="n">stream</span><span class="p">.</span><span class="k">close</span><span class="p">()</span><span class="w"></span> |
| </code></pre></div> |
| |
| </details> |
| <h4 id="instance-variables">Instance variables</h4> |
| <div class="codehilite"><pre><span></span><code><span class="n">extension</span> |
| </code></pre></div> |
| |
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