Add an undocumented "trait" class decorator to mypy_extensions (#5278)

This is an undocumented and extremely experimental annotation to
support a restricted for of multiple inheritance for `mypyc`.
1 file changed
tree: 42c980235bc8998c34a0e493e9f4081d60c62bb6
  1. LICENSE
  2. MANIFEST.in
  3. mypy_extensions.py
  4. README.md
  5. setup.cfg
  6. setup.py
README.md

Mypy Extensions

The “mypy_extensions” module defines experimental extensions to the standard “typing” module that are supported by the mypy typechecker.