Suppose a Python module written in C registers a method that ends up making a call to C functions larry(), moe(), and then curly() to mutate a global variable "

Suppose a Python module written in C registers a method that ends up making a call to C functions larry(), moe(), and then curly() to mutate a global variable "global_mutable_temp" before finally returning a value generated from global_mutable_temp. 1. Supposing this method doesn't currently crash under GIL python, would it be true that this method will also run without crashing on the non-GIL python interpreter? 2. Would it be true that the non-GIL python interpreter will introduce a race to this method (resulting in a runtime error) that didn't exist under the GIL interpreter?