Pregunta de entrevista de Varonis Systems

How does Python’s Global Interpreter Lock (GIL) affect multithreading, and in what scenarios is multithreading still beneficial despite the GIL?

Respuesta de la entrevista

Anónimo

13 may 2025

The GIL allows only one thread to execute Python bytecode at a time, limiting true parallelism for CPU-bound tasks. Multithreading is still useful for I/O-bound tasks like network calls or file I/O, where threads can wait without blocking the interpreter.