I can't even imagine how many engineering years it would require to fix just the most used libraries that expect the gil to exist. I assume 3 years wouldn't even cover the actually interpreter, throw in the library piece and how is this useful?
I can’t imagine you’ve read the proposal with a comment like this. The interpreter is already patched (twice in the proposal, for two different versions of Python), and Sam Gross has personally already patched many commonly used Python libraries. Here’s numpy patched, a mess of C and Fortran written for high performance code: https://github.com/colesbury/numpy/commits/v1.24.0-nogil
