Componentpedia / Listings / eval-type-backport

Last update: 16/05/2026

eval-type-backport

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

Latest version: 0.3.1 registry icon
Maintenance score
43
Safety score
100
Popularity score
5
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Security
  Vulnerabilities
Version Suggest Low Medium High Critical
0.3.1 0 0 0 0 0
0.3.0 0 0 0 0 0
0.2.2 0 0 0 0 0
0.2.1 0 0 0 0 0
0.2.0 0 0 0 0 0
0.1.3 0 0 0 0 0
0.1.2 0 0 0 0 0
0.1.1 0 0 0 0 0
0.1.0 0 0 0 0 0
0.0.1 0 0 0 0 0

Stability
Latest release:

0.3.1 - This version may not be safe as it has not been updated for a long time. Find out if your coding project uses this component and get notified of any reported security vulnerabilities with Meterian-X Open Source Security Platform

Licensing

Maintain your licence declarations and avoid unwanted licences to protect your IP the way you intended.

MIT   -   MIT License

Not a wildcard

Not proprietary

OSI Compliant

eval_type_backport

Build Status Coverage Status Supports Python versions 3.7+, including PyPy Anaconda's conda-forge channel

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.

Install

From PyPI:

pip install eval-type-backport

or with Conda:

conda install -c conda-forge eval-type-backport