Co-authored-by: Alex Waygood <[email protected]>

Looks like this is in `typing.__all__` but was missed out of `typing_extensions.__all__`

- Add "a" to make the message grammatical
- Add a trailing period because _type_check adds anot...

* PEP 655 Add interaction w/ required/optional keys

Change TypedDict to respect keys that are...

Co-authored-by: Nikita Sobolev <[email protected]>

Backport of python/cpython#30842, with additional tests from @sobolevn's python/cpython#31222.

Co-authored-by: Erik De Bonte <[email protected]>

As promised in https://bugs.python.org/issue46386

Backported:
- https://github.com/python/cp...

typing exists in all supported Python versions

As pointed out in #1023, there is no risk of incompatibility, since the
requires-python field w...

* Test on Python 3.11 pre-releases

* Update linter config

Per the Python docs and PEPs, `TypeAlias` appears to have been defined in PEP 613, not PEP 610.

Came up in python/typeshed#6619

Adds a local copy of _SpecialForm in our namespace, so
typing._type_check won't raise TypeError...

- Add an explicit inclusion policy: new stuff can go in here as soon as there is a PEP
- Remove...

Co-authored-by: David Foster <[email protected]>

Co-authored-by: Shantanu <[email protected]>

* Remove compatibility constants for old Python versions.
* Remove obsolete code branches.
* U...

* Drop Python 2.7 support -- tests, linting
* Adopt pyproject.toml and a build backend (flit)
...

Bump version to 4.0.0-pre

Update README accordingly

Closes: #877

Co-authored-by: Jelle Zijlstra <[email protected]>

* Split Python 2.7 tests from Python 3 tests as they use different paths
and require installa...

* Split linting into two steps
* Fix an overly long line
* Run linter with Python 3.9
* Ignor...

This only triggers on pr, not on pushes, since there will be a separate workflow for pushed that...

* BUG: Added a missing comma in `__all__`

* TST: Add a test to ensure that all objects in `__...

This should be the last missing piece for a 3.10-compatible release.

The implementation was m...

From python/cpython#25298. I also added more tests for get_args/get_origin,
which previously di...

Co-authored-by: Alex Grönholm <[email protected]>

(The solution for 3.7.0 and 3.7.1 is a little funky, but those releases are dead anyways.)

This was previously not included in the readme although implemented

Applies the fix from https://bugs.python.org/issue40398 to typing_extensions: typing.get_args() ...

It supports running its tests for all supported Python versions:
2.7 and 3.4-3.9, which are dif...

Python 3.9+ has its own version of Annotated. Make the tests take it
into account similarly to ...

(For a complete description of the issue see https://github.com/python/typing/pull/700.)

Following [1] this prevents multiple runtime implementations of Annotated
and get_type_hints fr...

The implementations come from CPython commit 427c84f13f77 with one small
change – the get_origi...

Backport of python/cpython#17214 (BPO-38834)

Fixes https://github.com/python/typing/issues/677

This backports https://github.com/python/cp...

Fixes #660

Fixes https://github.com/python/typing/issues/488 (again).

The fix is a hack, but on the othe...

This was recently fixed in CPython repo (while adding `Protocol` there). This PR backports the f...

Fixes https://github.com/python/typing/issues/648

This essentially just moves a bunch of code...

Fixes https://github.com/python/typing/issues/643

(Use ignore whitespace option to review thi...

The Python 2 version is very close to the Python 3.6 code.

This covers python 3.53 and above. I added a fair amount of tests.