Source Trove classifiers from canonical PyPA definitions

[kdeldycke]

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• I have searched the documentation and believe that my question is not covered.

Feature Request

I just stumble upon https://github.com/pypa/trove-classifiers , a package published and maintained by PyPA that is cataloguing all current and deprecated classifiers recognized on pypi.org . This is the canonical source of all trove definitions.

I propose to rely on this package to validate and check classifiers produced by poetry. Is that a good idea?

[kdeldycke]

Oh. One more thing: with the advance of a plugin system in the upcoming Poetry 1.1 release (see: #1856), shouldn't we send there a PR to add a new classifier dedicated to Poetry? Something like: Framework :: Poetry.

[pradyunsg]

For a new classifier, a request needs to be made to PyPI admins, and one of the criterion is that the classifier is immediately useful to at least 10 other packages/package maintainers (to avoid the case of adding classifiers for folks' pet projects that no one else uses).

I think it'd be worthwhile to wait until after the 1.1 release, before requesting for addition of the trove classifier.

[kdeldycke]

@pradyunsg oh yes you're right. In the mean time I checked the criterions for new inclusion and indeed, the classifier needs an existing base of relative popularity before being admitted into the reference. And I totally get it to not pollute the catalogue with short-lived or unmaintained projects.

[abn]

@kdeldycke I think it is reasonable to add this into the check command. I'd be hesitent to enforce this elsewhere however.

[kdeldycke]

Thanks @abn for the suggestion! I just pushed a PR at #2881 that is doing exactly that.

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