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Like `typing._eval_type`, but lets older Python versions use newer typing features.

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eval_type_backport

Build Status Coverage Status Supports Python versions 3.7+, including PyPy

This is a tiny package providing a replacement for typing._eval_type to support newer typing features in older Python versions.

Yes, that's very specific, and yes, typing._eval_type is a protected function that you shouldn't normally be using. Really this package is specifically made for https://github.com/pydantic/pydantic/issues/7873.

Specifically, this transforms X | Y into typing.Union[X, Y] and list[X] into typing.List[X] etc. (for all the types made generic in PEP 585) if the original syntax is not supported in the current Python version.

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