somewhere package dependency 'pyrsistent' got dropped

[TimMonko]

Hi there,
In trying to install a frozen environment on a new PC, I was getting a plugin error for both clesperanto and the assistant. Reading the error helped me identify that pyrsistent was a missing module. pip install pyrsistent resolved the issue. It's likely not directly related to this package, but I use a minimal install list typically to grab all the dependencies (i.e. pip install napari==0.4.17 napari-pyclesperanto-assistant will not work and requires pyrsistent. In part just posting this in case others are troubleshooting

[sebherbert]

Thanks for the solution! I got the same problem and it also solved my issue :)
I've simply used conda install -c conda-forge pyrsistent since I wanted to keep stuff in the conda world :) Just putting it out in case it can be useful to someone else too.