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fuchsia / third_party / github.com / python / typing_extensions / e7fe63f0673938e79078577cb749707aad3a2dea
commite7fe63f0673938e79078577cb749707aad3a2dea[log] [tgz]
authorJelle Zijlstra <jelle.zijlstra@gmail.com>Wed May 24 23:33:46 2023 -0700
committerGitHub <noreply@github.com>Wed May 24 23:33:46 2023 -0700
treee4ee4c14cba4b0348adf62620e6d0782054cdd83
parent57aae6249dd3c068a7068fd11e7d67379a544acf [diff]
Add guidance on robust runtime use (#189)
1 file changed
tree: e4ee4c14cba4b0348adf62620e6d0782054cdd83
  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.