Use Requires-Python to display better messaging/warning when a package version cannot be installed

[Smille59]

What's the problem this feature will solve?

Scenario (using numpy as example):

Given user has python 3.7 installed
And user wants to install numpy==1.22.0
And numpy does not support python 3.7, but only 3.8 and above
When user tries to pip install numpy==1.22.0
Then pip install cannot find a version that satisfied the requirement numpy=1.22.0
And pip install warns user that they may should upgrade their python installation for additional available versions
And pip install fails

Describe the solution you'd like

Let's do a compare between

pip index versions

and the error message in the pip install failure (see scenario above)

And warn "additional versions are available: [ ...versions ] check your python installation and upgrade if possible" or something to that affect

Alternative Solutions

Let's do a compare between

pip index versions

and the error message in the pip install failure (see scenario above)

And warn "additional versions are available: [ ...versions ] check your python installation and upgrade if possible" or something to that affect

Additional context

Let's do a compare between

pip index versions

and the error message in the pip install failure (see scenario above)

And warn "additional versions are available: [ ...versions ] check your python installation and upgrade if possible" or something to that affect

Code of Conduct

• I agree to follow the PSF Code of Conduct.

[q0w]

related: #9708

[uranusjr]

I think #9708 is enough for now