Comment by 12_throw_away

After installing all released versions of python locally, I can confirm that the `python3.15` command is not only very fast, but is guaranteed not to diverge!

   $ time python3.15 -c "while True: print('hello world')"
   bash: python3.15: command not found

   real 0m0.005s
   user 0m0.000s
   sys 0m0.002s