Going through your text, there’s a mixture of things that sort of combined here, I’m kind of just going to stream of conscious reply to them here, because I can’t reply inline.

> I must have missed the deprecation period that preceded the complete removal of the old APIs. A friendly email would have been nice if you expect me to migrate to a new solution.

This is a hard balance to strike. When I have generated emails in the past I tend to get a slew of people berating me for sending them emails about things. Particularly for changes like this where there belief is that for most people, the impact should be minimal, if there is any at all. I do try to at least tweet and post to distutils-sig about possibly disruptive changes like this. For this specific change, that thread was at https://mail.python.org/pipermail/distutils-sig/2017-June/030766.html.

 

> HTTPError: 400 Client Error: Invalid file extension. for url: https://upload.pypi.org/legacy/

The ability to upload anything besides sdists, wheels, and eggs was deprecated and removed. You can read the PEP that removed them at https://www.python.org/dev/peps/pep-0527/.

> I try python setup.py bdist upload

As I mentioned above, we deprecated/removed everything but sdist, wheels, and eggs as per PEP 527. We could probably do better error messages here though.