How agressively should we hunt source of pypi.io -> pypi.org 301 and pypi.org -> files.pythonhosted.org 301 redirect.

[Carreau]

I recently realized that many of the conda-forge recipe point to pypi.io, and that

https://pypi.io/packages/source/{{ name[0] }}/{{ name }}/{{ name }}-{{ version }}.{{ ext}}

1. Redirect to https://pypi.org/... which itself
2. Redirect to https://files.pythonhosted.org/...

2 questions:

• How much should we work on not having links to pypi.io ? That is to say how aggressively should we update recipes to point to pypi.org, or emit errors/warning message.
• same for pypi.org, if we can directly update code to reach for https://files.pythonhosted.org/... url, how aggressively should we try to do it.