Generic type ``IO[AnyStr]`` and its subclasses ``TextIO(IO[str])``

and ``BinaryIO(IO[bytes])``

represent the types of I/O streams such as returned by

:func:`open`. These types are also in the ``typing.io`` namespace.

:func:`open`.

..deprecated-removed::3.8 3.12

These types are also in the ``typing.io`` namespace, which was

never supported by type checkers and will be removed.

..class::Pattern

Match

:func:`re.match`. These types (and the corresponding functions)

are generic in ``AnyStr`` and can be made specific by writing

``Pattern[str]``, ``Pattern[bytes]``, ``Match[str]``, or

``Match[bytes]``. These types are also in the ``typing.re`` namespace.

``Match[bytes]``.

..deprecated-removed::3.8 3.12

These types are also in the ``typing.re`` namespace, which was

never supported by type checkers and will be removed.

..deprecated::3.9

Classes ``Pattern`` and ``Match`` from:mod:`re` now support ``[]``.

Mark ``typing.io`` and ``typing.re`` as deprecated since Python 3.8 in the

documentation. They were never properly supported by type checkers.