MacOS : Cannot allocate write+execute memory for ffi.callback()

python3 play_file.py file.wav

MemoryError: Cannot allocate write+execute memory for ffi.callback(). You might be running on a system that prevents this. For more information, see https://cffi.readthedocs.io/en/latest/using.html#callbacks

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State:
Created 2 years ago
Comments:12 (3 by maintainers)

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HaHehocommented, Jun 2, 2022

In general, I would recommend conda-forge over the default channel. However, I wasn’t aware of this:

For things like numpy this is not preferable however (strong performance differences depending on system architecture).

This seems unfortunate. Why is conda-forge not as good? Isn’t that something that should be fixed? I didn’t find an issue for that: https://github.com/conda-forge/numpy-feedstock/issues

https://anaconda.org/anaconda/numpy https://anaconda.org/conda-forge/numpy

FYI, the difference is what accelerated linear algebra library Numpy is built against, as documented here https://numpy.org/install/#numpy-packages--accelerated-linear-algebra-libraries. I suppose the conclusion of “strong performance differences” should be taken with a grain of salt and seen in context of what one is intending to do, and on what system architecture.

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petriewongcommented, Nov 7, 2022

Hi, I had the same issue with my M1 mac mini, macos 13.0 & anaconda environment.

pip uninstall cffi
pip install cffi

It works for me.

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