python3-typing-extensions Subpackage of python-typing-extensions

The typing_extensions module serves two related purposes: - Enable use of new type system features on older Python versions. For example, typing.TypeGuard is new in Python 3.10, but typing_extensions allows users on previous Python versions to use it too. - Enable experimentation with new type system PEPs before they are accepted and added to the typing module. typing_extensions is treated specially by static type checkers such as mypy and pyright. Objects defined in typing_extensions are treated the same way as equivalent forms in typing.

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