What limitations does the global interpreter lock create when working with multiple threads in Python?

The Global Interpreter Lock (GIL) in Python is a mechanism that allows only one thread to execute Python bytecode at a time.

Restrictions it creates when working with multiple threads:

• Threads cannot efficiently utilize multiple CPU cores for executing Python code simultaneously.
• Multithreaded programs that heavily use the CPU do not gain performance improvements due to sequential execution of bytecode.
• The GIL does not block I/O operations, so multithreading is useful for waiting tasks (e.g., network requests).

Because of the GIL, Python often uses multiprocessing (multiprocessing) for parallel computations, where each process has its own interpreter and GIL.