PyPy 3.10 support for Numpy 2.0.0rc1 or later? #26141

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1. rgommers

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   24 - PyPy

   on Mar 27, 2024
2. rgommers commented on Mar 27, 2024

   

   rgommers

   on Mar 27, 2024

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   Probably not, since it's not in the pipeline yet. @mattip may be able to say more about PyPy 3.10 support in general.
3. mattip commented on Mar 27, 2024

   

   mattip

   on Mar 27, 2024

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   If the project does decide to release wheels, I would suggest supporting x86_64 linux and maybe macos arm64 only. Windows support is failing on the weekly binary builds against pypy and I am not sure why, maybe some subtle interactions between PyPy's NAN and the expected values.
4. lschoe commented on Mar 28, 2024

   

   lschoe

   on Mar 28, 2024

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   Interestingly, when comparing NumPy windows-latest/pypy3.9-nightly with NumPy windows-latest/pypy3.10-nightly, these versions are (x)failing the same tests (also for the same reasons).

   For pypy3.9-nightly and for pypy3.10-nightly, respectively:

   = 26 failed, 47581 passed, 2690 skipped, 84 xfailed, 33 xpassed in 2235.08s (0:37:15) =
= 16 failed, 47595 passed, 2676 skipped, 94 xfailed, 33 xpassed in 2065.49s (0:34:25) =

   The failures are distributed as follows:

   2F in _core\tests\test_api.py
   2F in _core\tests\test_casting_unittests.py
   10(x)F in _core\tests\test_strings.py
   12F in _core\tests\test_umath.py

   Because of this, there seems to be no reason to prefer pypy3.9 over pypy3.10.

   Again interestingly, when I run these four tests above on my Windows machine with PyPy3.9 nightly together with Numpy 2.0.0b1, there are no failures at all:

   >python
   Python 3.9.18 (4133dd3122a1, Mar 27 2024, 07:16:40)
   [PyPy 7.3.16-alpha0 with MSC v.1929 64 bit (AMD64)] on win32
   Type "help", "copyright", "credits" or "license" for more information.
   And now for something completely different: ``"Let's go." - "We can't" - "Why
   not?" - "We're waiting for a Translation." - (despairingly) "Ah!"''
   >>>> import numpy
   >>>> numpy.__version__
   '2.0.0b1'
   

   >python -m pytest test_api.py
   ==================================================================== test session starts ====================================================================
   platform win32 -- Python 3.9.18[pypy-7.3.16-alpha], pytest-7.4.0, pluggy-1.4.0
   rootdir: C:\pypy-c-jit-183783-4133dd3122a1-win64\Lib\site-packages\numpy\_core\tests
   plugins: hypothesis-6.99.13
   collected 51 items
   
   test_api.py ...................................................                                                                                        [100%]
   
   ==================================================================== 51 passed in 3.17s =====================================================================
   

   The other three tests above also pass without failures.
   I'm using Windows 10 Home 22H2 19045.4170.

   Also, I've been testing my own Python package with PyPy3.9 and Numpy 2.0.0b1 without any problems (after making some minor adjustments which are also needed for cPython3.9 plus Numpy 2.0.0b1).

   So, maybe there is no serious cause for the test failures on Windows, and it would be good to switch to PyPy3.10 now so that people can test Numpy2.0.0 with PyPy3.10.
5. mattip

   closed this as completedon Mar 12, 2025