"Requires Python" metadata is not put to PyPI

[wim glenn]

Hi there, I'm trying out PBR for the first time today because I like the idea of getting all that crap out of the setup.py file. However I faced an issue where the "Requires Python" metadata, which pip uses to know whether to download a distribution or not, was not appearing on PyPI.

"python_requires" is a setuptools keyword arg, it's a string corresponding to a version specifier (as defined in PEP 440) for the Python version, used to specify the Requires-Python defined in PEP 345.

Here's the distribution I created with PBR, which is missing the "Requires Python":
https://pypi.python.org/pypi/logging-tz
https://github.com/wimglenn/logging_tz/blob/e7b80eacbb6ce0cfe3f4a16c35939313ed442466/setup.cfg#L8

And here's one I created without, which does correctly display this metadata on PyPI:
https://pypi.python.org/pypi/pynapple
https://github.com/wimglenn/pynapple/blob/b64ef0497747a844fc25f7c6678d64cac2932cb4/setup.py#L13

Both distributions were uploaded to PyPI with twine. I followed the example of PBR itself to specify the tag like this. What am I missing here?

[cmcginty (casey-mcginty)]

Confirmed. Funny that even pbr's setup.cfg tries to use it as "requires-python" but it doesn't work.

[Dennis Verspuij (dennis.verspuij)]

This can be fixed by adding the following key-value pair to the D1_D2_SETUP_ARGS dictionary in util.py:

"python_requires": ("metadata",),

Then you can define Python version requirements in setup.cfg, for example:

python-requires = >=3.0, <4

Pip then correctly checks the version requirements upon install.

Please commit this simple fix.

[Dennis Verspuij (dennis.verspuij)]

https://github.com/openstack-dev/pbr/pull/20

[Dennis Verspuij (dennis.verspuij)]

Sorry, I meant this one: https://github.com/openstack-dev/pbr/pull/19

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/571795

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/571795
Committed: https://git.openstack.org/cgit/openstack-dev/pbr/commit/?id=74680aa5f1464261d135ecee0ffa7395f1bfb09e
Submitter: Zuul
Branch: master

commit 74680aa5f1464261d135ecee0ffa7395f1bfb09e
Author: Ben Nemec <email address hidden>
Date: Fri Jun 1 18:02:55 2018 +0000

    Support python-requires metadata

    Expose the python_require setuptools option via the python-requires
    metadata item in setup.cfg.

    Closes-Bug: 1735668

    Change-Id: Idf2bb90882121e118f5b7531e027d350c0e4a441
    Co-authored-by: Dennis Verspuij <email address hidden>

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack-dev/pbr 4.1.0 release.