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Each project's maintainers provide PyPI with a list of "Trove classifiers" to categorize each release, describing who it's for, what systems it can run on, and how mature it is.

These standardized classifiers can then be used by community members to find projects based on their desired criteria.

Instructions for how to add Trove classifiers to a project can be found on the Python Packaging User Guide. To read the original classifier specification, refer to PEP 301.

To prevent a package from being uploaded to PyPI, use the special "Private :: Do Not Upload" classifier. PyPI will always reject packages with classifiers beginning with "Private ::".

List of classifiers

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