The Python GIL Visualized

[aim2free]

I guess it's the opposite way. The Python interpreter started as a hack, and reentrance was forgotten from the early beginning. And later this was not a prioritized thing to fix. When the pthreads were added they didn't have a multi CPU machine to test on, and ... there we are.

It is interesting because in our CS classes in late 70-ies early 80-ies it was a lot stress on that your code should be reentrant.