The documentation for Python's static typing can be found at typing.readthedocs.io. You can get help either in our support forum or chat with us on Gitter.
Improvements to the type system should be discussed on the typing-sig mailing list, although the issues in this repository contain some historic discussions.
This GitHub repository is used for several things:
typing_extensions module lives in the typing_extensions directory.
A discussion forum for typing-related user help is hosted here.
Historically, this repository hosted a backport of the
typing module for older Python versions. The last released version, supporting Python 2.7 and 3.4, is available at PyPI.
See CONTRIBUTING.md for more.