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I have successfully installed modin[dask] with conda on my Apple M1 chip MacBook Pro, but when I run the code, I got the below errors:

AttributeError: 'NoneType' object has no attribute 'ncores'.

The below is pip list(Python 3.10.4):

dask                          2022.5.0
distributed                   2022.5.0
modin                         0.11.3
pandas                        1.3.4

Thanks for any help.

mdurant
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Joycode
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  • Please include your complete traceback and installation steps. – mdurant May 20 '22 at 14:28
  • Actually, I could install modin[dask] successfully with `conda install modin[dask]`, but when I run it, it prompts the above exception message. – Joycode May 25 '22 at 02:15
  • `modin[dask]` is NOT the name of a conda package https://modin.readthedocs.io/en/0.12.1/installation.html#installing-with-conda and https://anaconda.org/search?q=modin – mdurant May 25 '22 at 14:15

1 Answers1

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It's hard to diagnose what's going on without seeing what code you ran and exactly how you installed everything.

Here's a blog post about setting up an M1-based Mac with dask: https://coiled.io/blog/apple-arm64-mambaforge/

The key points are:

  • start fresh with mambaforge
  • conda should be ok if mamba's not an options
  • install everything into a fresh environment and everything should come from the conda-forge channel.
mamba create --name=dask-env python=3.9 dask dask-labextension --channel=conda-forge
Paul H
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