PyPy, an alternative runtime for Python, uses a specially created JIT compiler to yield potentially massive speedups over CPython, the conventional Python runtime. But PyPy’s exemplary performance has ...

The Python community is chewing over a new idea: allowing the C-based reference implementation, CPython, to incorporate Rust. It's only at the "pre-PEP" stage, but it's already sparked lively debate.

The Python team has released version 3.14, with big new features including free threading support, the ability to use concurrent interpreters, improved debugger support, and an opt-in new interpreter ...

Using the code in #105805 with the newly added test.test_threading.ThreadTests.test_finalize_daemon_thread_hang test enabled you can reproduce this thread sanitizer crash as follows (I used clang 18): ...

This issue is to discuss and keep track of progress on support for the experimental free-threading build of CPython at a high level. CPython has historically been using a Global Interpreter Lock (GIL) ...

Formal plans for a Python that supports true parallelism are finally on the table. Here’s how a GIL-free Python will finally come together. After much debate, the Python Steering Council intends to ...

Summit received numerous topic proposals from Python core developers as well as from members of the wider Python community, all are very interesting and important. The next version of the standard ...

Ruby and Python's standard implementations make use of a Global Interpreter Lock. Justin James explains the major advantages and downsides of the GIL mechanism. Multithreading and parallel processing ...