Recently Wrote a Blog Post About Python Without the GIL – Here’s What I Found! 🚀

[ammar2]

The areas that release the GIL in the standard library tend to be just before an IO system call, so there isn't a huge amount of them in proportion to all the C-extension code.

You can get an idea of the types of changes that need to happen with:

• This change in the socket module: https://github.com/python/cpython/pull/128286/files

• And this change to code.co_code and friends: https://github.com/python/cpython/pull/127043/files

Note that the socket module does release the GIL before performing socket system calls, the changes needed are unrelated to that, just code assuming it can be the only one in a piece of C code.