Python 3.8 ioos_qc leads to an ImportError with xarray, but Python 3.7 does not.

[kthyng]

mamba create --name test-xarray-ioosqc38 python=3.8 xarray ioos_qc
conda activate test-xarray-ioosqc38

and then in a python window trying:

from ioos_qc.streams import NumpyStream

gives

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/kthyng/miniconda3/envs/test-xarray-ioosqc/lib/python3.8/site-packages/ioos_qc/streams.py", line 10, in <module>
    from xarray.core.indexing import remap_label_indexers
ImportError: cannot import name 'remap_label_indexers' from 'xarray.core.indexing' (/Users/kthyng/miniconda3/envs/test-xarray-ioosqc/lib/python3.8/site-packages/xarray/core/indexing.py)

However, the following environment with Python 3.7 does not lead to an error:

mamba create --name test-xarray-ioosqc37 python=3.7 xarray ioos_qc

[ocefpaf]

This is most likely a packaging problem. Can you do a conda list on both environments and post for us here?

Scratch that. remap_label_indexers was removed in pydata/xarray#5692 and we need to pin to xarray<2022.3.0 until ioos_qc code is adapted to the new xarray.

[kthyng]

Thanks for figuring that out!