fixing this: WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash

[rsignell-usgs]

Today I tried to run a notebook in my users-pangeo environment that had been working, but it failed with:

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
Cell In[1], line 2
      1 import fsspec
----> 2 from fsspec.implementations.reference import DFReferenceFileSystem
      3 import xarray as xr

ImportError: cannot import name 'DFReferenceFileSystem' from 'fsspec.implementations.reference' (/home/conda/users/550545879325c4bf8bb9f8f1536b177a8c6bec51df1a0e9f776e25408ffc5eae-20230125-150329-039583-57-pangeo/lib/python3.9/site-packages/fsspec/implementations/reference.py)

I printed out the fsspec version being used, and found it wasn't the latest from github I expected. I went and checked conda-store using the gui, and the environment yaml was installing fsspec from github master as it should have been. So then I opened a terminal to check the version of fsspec that was being used, and got these warnings:

$ conda activate users-pangeo
$ conda list fsspec
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename /home/conda/users/envs/users-pangeo/conda-meta/sparse-0.13.0-pyhd8ed1ab_0.json.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename /home/conda/users/envs/users-pangeo/conda-meta/fsspec-2022.11.0-pyhd8ed1ab_0.json.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename /home/conda/users/envs/users-pangeo/conda-meta/kerchunk-0.1.0-pyhd8ed1ab_0.json.  Please remove this file manually (you may need to reboot to free file handles)

I then logged into the conda-store pod (using k9s, I typed :pods, then used the arrow keys to move to the conda-store-worker pod and typed s for shell. I logged in and then searched for json files with these name and deleted them. For example:

$cd /home/conda 
 
$ find . -name fsspec-2022.11.0-pyhd8ed1ab_0.json -print | grep pangeo
./users/550545879325c4bf8bb9f8f1536b177a8c6bec51df1a0e9f776e25408ffc5eae-20230125-150329-039583-57-pangeo/conda-meta/fsspec-2022.11.0-pyhd8ed1ab_0.json

$ rm ./users/550545879325c4bf8bb9f8f1536b177a8c6bec51df1a0e9f776e25408ffc5eae-20230125-150329-039583-57-pangeo/conda-meta/fsspec-2022.11.0-pyhd8ed1ab_0.json

I then stopped my server and restarted, and not it's using the correct latest fsspec version from github again.