With the introduction of 3.10, the sorting of versions is no longer intuitively correct.

$ pyenv versions
* system
  3.10.0
  3.9.7

This seems to happen as a side effect of glob expansion sorting on a byte for byte basis on most filesystems.

GNU sort would have a -V --version-sort [1] flag, but that's not portable as at least sort on macOS does not have that [2].

Columnar sort with a separator [2]could be a way to approach the problem. This could be added as a pipe to the end of that for loop.

This is the path the --definitions command of python-build has taken.

[1] https://man7.org/linux/man-pages/man1/sort.1.html
[2] https://ss64.com/osx/sort.html
[3] https://stackoverflow.com/a/39454220/1214697