Invalid or non-existent authentication information

When I run python setup.py sdist upload

I always get:

Submitting dist/xxxxxxx-0.1.4.tar.gz to https://upload.pypi.org/legacy/
Upload failed (403): Invalid or non-existent authentication information.
error: Upload failed (403): Invalid or non-existent authentication information.

It never asks me to enter my username but only password. So I assume the username is the same as when I run “register”.

I am pretty sure that password I entered is correct because I can login https://pypi.python.org/pypi

Could you please help? I am not new to pypi. I published several packages before. But now I am confused. What has changed recently?

[dover247]

Heres What I Did To Fix:

Created ~/.pypirc File With The Following Contents:

[distutils]
index-servers =
    pypi

[pypi]
repository: https://pypi.python.org/pypi
username: <username>
password: <pass>

[boxed]

The very existence of this issue, the number of people commenting, etc, shows this stuff is really quite bad 😦

Could someone explain why https://upload.pypi.org/legacy/ is a URL that we should/can use?