[3.10] gh-103099: Link mypy docs from typing.rst (GH-103100) by miss-islington · Pull Request #103127 · python/cpython
.. seealso::
For a quick overview of type hints, refer to `this cheat sheet <https://mypy.readthedocs.io/en/stable/cheat_sheet_py3.html>`_.
The "Type System Reference" section of https://mypy.readthedocs.io/ -- since the Python typing system is standardised via PEPs, this reference should broadly apply to most Python type checkers, although some parts may still be specific to mypy.
The documentation at https://typing.readthedocs.io/ serves as useful reference for type system features, useful typing related tools and typing best practices.