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Comment by metadat | Hacker News Reader

Why is there such a dramatic performance gap / slowdown for 3.10 + 3.11 compared to 3.9.12?

That's pypy 3.9.12, it has a JIT implementation to interpret python. The other two are standard CPython which doesn't JIT interpret the code.

Oops, thanks for clarifying.

Does pypy support numpy now?

yes

    $ pip install numpy
    <snip building wheel>
    $ python --version && python -c "import numpy; print(numpy.identity(5))"
    Python 3.9.12 (05fbe3aa5b0845e6c37239768aa455451aa5faba, Mar 29 2022, 09:54:47)
    [PyPy 7.3.9 with GCC Apple LLVM 13.0.0 (clang-1300.0.29.30)]
    [[1. 0. 0. 0. 0.]
     [0. 1. 0. 0. 0.]
     [0. 0. 1. 0. 0.]
     [0. 0. 0. 1. 0.]
     [0. 0. 0. 0. 1.]]

That's 3.9.12 of PyPy, not CPython

Not OP, but are you taking into consideration that it is not Python 3.9, but pypy, which is distinct

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