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android / platform / external / python / typing_extensions / 18ae2b323d5199071cc51eef342bc0ac98e1edf1
commit18ae2b323d5199071cc51eef342bc0ac98e1edf1[log] [tgz]
authorAlex Waygood <[email protected]>Wed Nov 29 17:39:02 2023 +0000
committerGitHub <[email protected]>Wed Nov 29 09:39:02 2023 -0800
tree10aea4bfcd31163ad76dc5a48127ef738c5e6a15
parente4d9d8bcb674a78ce3beb288c465d8e3648b534f [diff]
Backport recent improvements to the error message when trying to call `issubclass()` against a protocol with non-method members (#304)
3 files changed
tree: 10aea4bfcd31163ad76dc5a48127ef738c5e6a15
  1. .github/
  2. doc/
  3. src/
  4. .editorconfig
  5. .flake8
  6. .flake8-tests
  7. .gitignore
  8. .readthedocs.yaml
  9. CHANGELOG.md
  10. CONTRIBUTING.md
  11. LICENSE
  12. pyproject.toml
  13. README.md
  14. test-requirements.txt
  15. 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 is treated specially by static type checkers such as mypy and pyright. Objects defined in typing_extensions are treated the same way as equivalent forms in typing.

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.

Included items

See the documentation for a complete listing of module contents.

Contributing

See CONTRIBUTING.md for how to contribute to typing_extensions.