Feature or enhancement

Proposal:

There are some minor optimisations possible in os.path, including some fast returns.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Links to previous discussion of this feature:

• gh-117201: Handle leading // for posixpath.commonpath #117202

Linked PRs

• gh-117349: Micro-optimize a few os.path functions #117350
• gh-117349: Speedup os.path #117610