[$] An explicit thread-safety proposal for Python

Date:
Mon, 03 Nov 2025 17:44:17 +0000

Description:
Python already has several ways to run programs concurrently
including asynchronous functions, threads, subinterpreters, and multiprocessing
but all of those options have drawbacks of one kind or another. PEP703 ("Making the Global Interpreter Lock Optional in CPython") removed a major barrier to running Python
threads in parallel, but also exposed Python programmers to the same tricky synchronization problems found in other languages supporting multithreaded programs. A new draft proposal
by Mark Shannon, PEP805 ("Safe Parallel Python"), suggests a way for the CPython runtime
to cut down on concurrency bugs, making it more practical for Python programmers
to use versions of the language without the global interpreter lock (GIL).

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Link to news story:
https://lwn.net/Articles/1043568/


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