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
alt Hacker News
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!