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