commit | 99fa708df2af1ab5ecde47968d71dc5b0447fc5d | [log] [tgz] |
---|---|---|
author | Alex Waygood <Alex.Waygood@Gmail.com> | Thu Aug 03 17:07:10 2023 +0100 |
committer | GitHub <noreply@github.com> | Thu Aug 03 09:07:10 2023 -0700 |
tree | ea33f113b2d1d239cc58be7d35a3554c7df24620 | |
parent | 688fbd2545944c9c36a0d08084e7c92642a81751 [diff] |
Backport CPython PR 107584 (#275)
The typing_extensions
module serves two related purposes:
typing.TypeGuard
is new in Python 3.10, but typing_extensions
allows users on previous Python versions to use it too.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.
See the documentation for a complete listing of module contents.
See CONTRIBUTING.md for how to contribute to typing_extensions
.