Enable "conda install COMPAS" to work on Apple Silicon M1 Macs

Feature Request

As an M1 mac user, it would be fantastic to be able to follow the suggested installation for compas without errors. Maybe it’s as easy as adding a respective image to the conda-forge/osx-arm64 channel.

Details

When trying to install compas with the regular (mini)conda setup I get the error message that the compas package is not available in any of the channels, even after running conda config --add channels conda-forge (as expected since it is not in the ARM channel). I then tried to install the package via pip, which somewhat worked but only installed version 0.3.9.

The best workaround I could find was to set up conda in rosetta/intel-virtualization mode following these instructions on a miniforge fork:

CONDA_SUBDIR=osx-64 conda create -n [environment]   # create a new environment
conda activate [environment]
conda env config vars set CONDA_SUBDIR=osx-64  # subsequent commands use intel packages

In that environment, the installation went as expected and I got the latest version. However, this of course runs all packages using the Intel versions which might impair performance.

[brgcode]

as far as i can tell, we are supposed to send a PR to the conda-forge-pinning feedstock to add support for osx_arm64 to compas.

https://conda-forge.org/blog/posts/2020-10-29-macos-arm64/

i just did that. see here https://github.com/conda-forge/conda-forge-pinning-feedstock/pull/2434. i also tried the manual version but it failed.

i guess now we have to wait 😃

[irruputuncu]

Yes! It is seamlessly installed from the ARM channels now and I can also confirm that python runs in Apple Silicon mode now.

Thanks a lot!