Great minds think alike. Here's one I just cooked up. Python 3.13 is faster, at least for the simplest possible list comprehension with no filters. N is the length of the list comprehension. Repeated 100 times for each test and showing the average. Run on a MacBook Air M3.

https://gist.github.com/thomasaarholt/2e4d42cbf3f0de60c811bb...

  Running on Python 3.12.7 (main, Oct  2 2024, 15:45:55) [Clang 18.1.8 ]
  11.32ns on N=100
  9.42ns on N=1000
  7.32ns on N=10000
  5.23ns on N=100000
  5.87ns on N=1000000
  
  Running on Python 3.13.0 (main, Oct 16 2024, 08:05:40) [Clang 18.1.8 ]
  7.30ns on N=100
  5.91ns on N=1000
  5.09ns on N=10000
  4.31ns on N=100000
  5.89ns on N=1000000