pep 703

PEP 703 is a Python Enhancement Proposal titled “Making the Global Interpreter Lock (GIL) Optional in CPython.” It proposes an optional, no-GIL build of Python, meaning that Python could run without the global interpreter lock to enable better true multithreading performance in CPU-bound workloads. The proposal’s aim is to make removing the GIL an officially supported configuration, allowing extensions and tools to gradually adapt to a future where Python can fully leverage multiple CPU cores in parallel within a single process.