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fuchsia / third_party / github.com / python / typing_extensions / 68ee133748aec8c13c91c8c7440c8a970931acaf
commit68ee133748aec8c13c91c8c7440c8a970931acaf[log] [tgz]
authorJelle Zijlstra <jelle.zijlstra@gmail.com>Thu Jun 01 16:56:16 2023 -0700
committerJelle Zijlstra <jelle.zijlstra@gmail.com>Thu Jun 01 16:56:16 2023 -0700
tree21818ca497f4b04e7bd70721609cc9910206030e
parentf9d21b1aaaed1e0eacd12acda1c6d665a87a25e8 [diff]
parentc57333b77603298e2d79fdaf7632e09e40d11f54 [diff]
Merge branch '463'
tree: 21818ca497f4b04e7bd70721609cc9910206030e
  1. .github/
  2. doc/
  3. src/
  4. .editorconfig
  5. .flake8
  6. .flake8-tests
  7. .gitignore
  8. CHANGELOG.md
  9. CONTRIBUTING.md
  10. LICENSE
  11. pyproject.toml
  12. README.md
  13. test-requirements.txt
  14. tox.ini
README.md

Typing Extensions

Chat at https://gitter.im/python/typing

Documentation – PyPI

Overview

The typing_extensions module serves two related purposes:

  • Enable use of new type system features on older Python versions. For example, typing.TypeGuard is new in Python 3.10, but typing_extensions allows users on previous Python versions to use it too.
  • Enable experimentation with new type system PEPs before they are accepted and added to the typing module.

typing_extensions uses Semantic Versioning. The major version will be incremented only for backwards-incompatible changes. Therefore, it's safe to depend on typing_extensions like this: typing_extensions >=x.y, <(x+1), where x.y is the first version that includes all features you need.

typing_extensions supports Python versions 3.7 and higher.

Included items

See the documentation for a complete listing of module contents.

Running tests

To run tests, navigate into the src/ directory and run test_typing_extensions.py.