no support for versioned requirements about caniusepython3

[omnilinguist]

(the python ciup3.py construct is a custom hack due to #209)

[brettcannon]

It's by design because tracking when support was added at a version level is a lot more work than simply saying the general project has support (e.g. if supervisor had a separate package for support then we would have to track at what version Python 3 support began and that's a good amount of added overhead). So it's doable (and thanks for the idea!), but I don't think it's worth the effort and I'm not up for managing the override metadata for such support.

[futu]

According to json output from pypi.org check some version for compatibility is not big deal to implement:

There is version dictionary. Sample output for 2.22.0 version: there is field 'python_version': 'py2.py3', and 'requires_python': '>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*', for package type: wheel.

'2.22.0': [ { 'comment_text': '', 'digests': { 'md5': 'd5327a0023c190febb7e2f491d5ca905', 'sha256': '9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31' }, 'downloads': -1, 'filename': 'requests-2.22.0-py2.py3-none-any.whl', 'has_sig': False, 'md5_digest': 'd5327a0023c190febb7e2f491d5ca905', 'packagetype': 'bdist_wheel', 'python_version': 'py2.py3', 'requires_python': '>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*', 'size': 57952, 'upload_time': '2019-05-16T14:37:14', 'url': 'https://files.pythonhosted.org/packages/51/bd/23c926cd341ea6b7dd0b2a00aba99ae0f828be89d72b2190f27c11d4b7fb/requests-2.22.0-py2.py3-none-any.whl' }, { 'comment_text': '', 'digests': { 'md5': 'ee28bee2de76e9198fc41e48f3a7dd47', 'sha256': '11e007a8a2aa0323f5a921e9e6a2d7e4e67d9877e85773fba9ba6419025cbeb4' }, 'downloads': -1, 'filename': 'requests-2.22.0.tar.gz', 'has_sig': False, 'md5_digest': 'ee28bee2de76e9198fc41e48f3a7dd47', 'packagetype': 'sdist', 'python_version': 'source', 'requires_python': '>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*', 'size': 113406, 'upload_time': '2019-05-16T14:37:18', 'url': 'https://files.pythonhosted.org/packages/01/62/ddcf76d1d19885e8579acb1b1df26a852b03472c0e46d2b959a714c90608/requests-2.22.0.tar.gz' } ],

Jsson parsing at this line can be amended:

caniusepython3/caniusepython3/pypi.py

Line 89 in 916b32b

return any(c.startswith("Programming Language :: Python :: 3")

I can prepare PR for version support.

[brettcannon]

I still don't plan to reopen this. As I have no need to care about Python 2 support anymore I am maintaining this as a kindness to the community. As such I don't want to have to support new features at this point. I'm happy to keep the overrides data up-to-date (for now), but having to do PR reviews and deal with potential bugs is not worth it to me.

Now if people want to fork and create their own tools that build on all of this and add more features then please feel free to.