For PyPI, add the supported versions of Python

[cclauss]

Are these the right versions?

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[cclauss]

I signed it!

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[vrusinov]

Sorry, I only saw your pull request now.

I am very sorry but we don't have technical ability to merge pull requests back (see https://github.com/google/python-gflags/blob/master/CONTRIBUTING.md). Can you please describe what are you trying to fix and I'll try to address in in next release?

[cclauss]

The problem that I am trying to fix is that python-gflags is currently on the Python 3 Wall of Shame.

As one of the top 200 modules downloaded from PyPI, python-gflags is highly visible. python-gflags is red on python3wos because I believe that its PyPI record does not properly declare its Python 3 compatibility. If python-gflags is not compatible with Python 3 then it should be in red but if it does indeed support Python 3, the it should be in green.

[vrusinov]

Gotcha. I'll run a few tests with python3 and update setup accordingly.

[nickjacobson]

The changes in #22 could help to make the library Python 3 compatible.

[vrusinov]

Status update: I've declared python-gflags python2 only.
While I can make it "work" in python3 I would not be comfortable declaring it is supported. There are few fundamental changes needs to be done, specifically in bytes vs unicode/str area.

Since we don't have ability to accept pull requests to this project, I'm going to close this one and continue working on proper python3 support.

[Kurt-von-Laven]

Thank you for investigating Python 3 support, @vrusinov. Would it be possible to get a rough ETA? Is Ubuntu's version of gflags that supports Python 3 already on your radar?

[vrusinov]

For anyone may see this pull request: I think Gregory summarized situation quite accurately in issue #20.