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-Code in this repository should follow CPython's style guidelines and
-contributors need to sign the PSF Contributor Agreement.
-
-# typing\_extensions
-
-The `typing_extensions` module provides a way to access new features from the standard
-library `typing` module in older versions of Python. For example, Python 3.10 adds
-`typing.TypeGuard`, but users of older versions of Python can use `typing_extensions` to
-use `TypeGuard` in their code even if they are unable to upgrade to Python 3.10.
-
-If you contribute the runtime implementation of a new `typing` feature to CPython, you
-are encouraged to also implement the feature in `typing_extensions`. Because the runtime
-implementation of much of the infrastructure in the `typing` module has changed over
-time, this may require different code for some older Python versions.
-
-`typing_extensions` may also include experimental features that are not yet part of the
-standard library, so that users can experiment with them before they are added to the
-standard library. Such features should ideally already be specified in a PEP or draft
-PEP.
-
-`typing_extensions` supports Python versions 3.7 and up.
-
-# Versioning scheme
-
-Starting with version 4.0.0, `typing_extensions` uses
-[Semantic Versioning](https://semver.org/). The major version is incremented for all
-backwards-incompatible changes.
-
-# Workflow for PyPI releases
-
-- Ensure that GitHub Actions reports no errors.
-
-- Update the version number in `typing_extensions/pyproject.toml` and in
-  `typing_extensions/CHANGELOG.md`.
-
-- Make sure your environment is up to date
-
- - `git checkout master`
- - `git pull`
- - `python -m pip install --upgrade build twine`
-
-- Build the source and wheel distributions:
-
-  - `cd typing_extensions`
-  - `rm -rf dist/`
-  - `python -m build .`
-
-- Install the built distributions locally and test (if you were using `tox`, you already
-  tested the source distribution).
-
-- Run `twine upload dist/*`.
-
-- Tag the release. The tag should be just the version number, e.g. `4.1.1`.
-
-- `git push --tags`