Add Python versions to markers implied from wheels

[zanieb]

Looking into #14836

This does resolve the issue, if the user adds python_version == '3.8.*' to the required-environments.

[zanieb]

In contrast to platform markers, I think we might always want to enforce that the Python version markers are satisfied by the implied markers, even if they're not defined as a required-environment. However, I'm curious if we should land this pull request first since it's an incremental improvement and we can get a sense of whether or not this has unintended effects? Then we can land doing this by default as a subsequent change?

[charliermarsh]

Yeah, I think we should always enforce this, unlike platform markers.

I'm okay shipping this first if you'd prefer.

[charliermarsh]

The only downside here is that the lockfile markers get unnecessarily more-complex in some cases, as you can see from the diffs.

[zanieb]

Agree it's a bummer the markers are more complex. I guess some of that noise would be cut out if we treated platform_python_implementation differently. I think it's sort of fine though.

[zanieb]

Yeah, I think we should always enforce this, unlike platform markers.

I'll try to look into that in the next week or so.