[Distutils] Switch to upload.pypi.org instead of upload.pypi.io

[Donald Stufft]

> On Jul 30, 2016, at 11:59 PM, tritium-list at sdamon.com wrote:
> 
>> 
>> +1 on the recommendation for folks to switch their configuration
>> settings, although given that domains aren't that expensive, it's
>> probably worth the PSF keeping control of pypi.io as an alias of
>> pypi.org at least for a few years (and perhaps indefinitely).
> 
> It's important to keep pypi.io around for a while, since pypi.org isn’t propagating yet.


There are currently no plans to stop supporting pypi.io, though at some point upload.pypi.io might go away or become a redirect to upload.pypi.org (we can’t redirect it currently because it’s a POST request with files and the clients don’t support redirects).

None of the other domains for pypi.org are currently active yet.

—
Donald Stufft