python3-discovery (Python interpreter discovery)

python-discovery is a library for discovering Python interpreters
installed on your machine. You may have multiple Python versions
from system packages, pyenv, mise, asdf, uv, or the Windows registry
(PEP 514). This library finds the right one for you.

Give it a requirement like python3.12 or >=3.11,<3.13, and it searches
all known locations, verifies each candidate, and returns detailed
metadata about the match. Results are cached to disk so repeated
lookups are fast.