Google Git
Sign in
android / platform / external / python / typing_extensions / f9d21b1
commitf9d21b1aaaed1e0eacd12acda1c6d665a87a25e8[log] [tgz]
authorAlex Waygood <Alex.Waygood@Gmail.com>Fri Jun 02 00:35:00 2023 +0100
committerGitHub <noreply@github.com>Thu Jun 01 16:35:00 2023 -0700
tree001b08f6064f21f21be4b96e52ce3f8e7989a20a
parentcef8f0ed1ac803acac5b6201451b09538de15357 [diff]
Backport CPython PR 105152 (#208)
3 files changed
tree: 001b08f6064f21f21be4b96e52ce3f8e7989a20a
  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.