Retrieving "Pep 703" from the archives

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1. Global Interpreter Lock

   Linked via "PEP 703"

   Removal Efforts and Proposals
   Multiple proposals have attempted GIL removal, most notably PEP 703 (2023), which proposed implementing biased locking through a per-object reference counting scheme. However, the computational overhead of maintaining fine-grained locks—estimated at 15-20% performance degradation for single-threaded code—has proven prohibitive. The Python Enhancement Proposal Committee ultimately decided to retain the GIL, citing its role in maintaining Python's "essential philosophical character" as a language where concurrency remains deliberately const…