I've often seen people say things like "I can't use TypeGuard yet, I'm stuck on 3.9". That's not true, because the typing_extensions package backports all typing features to all supported Python versions.

To help make people aware of this option, we should mention typing_extensions in https://docs.python.org/3.10/library/typing.html.

Perhaps this can go in the "Relevant PEPs" section, or at the end of the intro section.

Suggested wording:

"New features have been added to the typing module in each major version of Python. The typing extensions (link to GitHub) package provides backports to all supported versions of Python 3 for almost all of these features."

Sounds like a great idea. I like the idea of putting it in the "Relevant PEPs" section, as that section already details how the typing module has evolved over the past few major versions of Python.

Sounds like a good idea. I would put it into the introduction. I hear it will easily be missed in other sections.

Wouldn't a link to PyPI make more sense than a GitHub link?

Yes please, this is a great idea.

(First time contributor looking for guidance) Is this diff okay? I'm not sure if the package name should be typing-extensions, or if the formatting is okay

diff --git a/Doc/library/typing.rst b/Doc/library/typing.rst
index 94a46b01a1..c0fe656c1c 100644
--- a/Doc/library/typing.rst
+++ b/Doc/library/typing.rst
@@ -32,6 +32,11 @@ In the function ``greeting``, the argument ``name`` is expected to be of type
 :class:`str` and the return type :class:`str`. Subtypes are accepted as
 arguments.

+New features have been added to the typing module in each major version of
+Python. The `typing_extensions <https://pypi.org/project/typing-extensions/>`_
+package provides backports to all supported versions of Python 3 for almost
+all of these features.
+
 .. _relevant-peps:

 Relevant PEPs

Welcome to this project, Meer!

That looks pretty good, feel free to submit a PR. We can then perhaps get feedback from more people to improve the wording.

New changeset 8debeed3075bf4d7e568e65da16bec63cf276f4f by Meer Suri in branch 'main':
bpo-46494: Mention the typing_extensions pkg in typing docs (GH-31260)
https://github.com/python/cpython/commit/8debeed3075bf4d7e568e65da16bec63cf276f4f

Thanks for the patch!

New changeset e053f0e9f41791095a924e2aceaaa025a058ed57 by Miss Islington (bot) in branch '3.10':
bpo-46494: Mention the typing_extensions pkg in typing docs (GH-31260)
https://github.com/python/cpython/commit/e053f0e9f41791095a924e2aceaaa025a058ed57

New changeset 0c718e02f60f98275c62e8a2a152f086650e88ea by Miss Islington (bot) in branch '3.9':
bpo-46494: Mention the typing_extensions pkg in typing docs (GH-31260)
https://github.com/python/cpython/commit/0c718e02f60f98275c62e8a2a152f086650e88ea