How do people put up with python dependencies

Python 3.12:
Numpy needs older Python

Switch to 3.10:
pickle5 needs 3.5 - 3.7

Switch to 3.7:
Can't install <3.8 with pyenv
Pickle5 apparently works on 3.8

Switch to 3.8:
torch won't install despite supporting 3.8

Switch to 3.9:
pickle5 won't install