> if you don't have GIL, you'll need to manage explicit locks You need to do that with multithreaded Python code with the GIL. The GIL only guarantees that ope

> if you don't have GIL, you'll need to manage explicit locks You need to do that with multithreaded Python code with the GIL. The GIL only guarantees that operations that take a single bytecode are thread-safe. But many common operations (including built-in operators, functions, and methods on built-in types) take more than one bytecode.