requires-python normalization is unintuitive

[charliermarsh]

E.g., python_version <= '3.9' or python_version > '3.9' doesn't simplify out, nor does python_version < '3.9' or python_version >= '3.9'.

Related to #4714.

[charliermarsh]

If this were a Python package, it would actually be correct not to normalize these, due to pre-release handling and other details of PEP 440. But we generally want to ignore that stuff with requires-python.

[charliermarsh]

I think this can be solved alongside #4714.

[ibraheemdev]

Is this a duplicate of #4272?

[charliermarsh]

@ibraheemdev - Yeah, thank you.