[Bug]: `cf_xarray<0.7.3` + `xarray>=2022.6.0` breaks with `AttributeError: module 'xarray.core' has no attribute 'resample'`

[tomvothecoder]

I totally forgot to open up this issue last September, but I wanted to keep it on record in this repo.

In this xCDAT issue , a user found thatcf_xarray=0.7.0 breaks if xarray>=2022.6.0 is installed due to the import of module xr.core.resample.Resample. Maybe this module was moved to another location in the xarray codebase in that version?

Solution

• Direct user solution: upgrade/install cf_xarray >=0.7.3 (this is what we found to work)
• Developer solution: maybe a patch to constrain xarray>=2022.6.0 in the conda-forge feedstock?

Minimum example

Create and activate the environment (conda or mamba)

mamba create -n cf-xarray-bug cf_xarray=0.7.0 xarray=2022.6.0
mamba activate cf-xarray-bug
python

import cf_xarray

Log Output

>>> import cf_xarray
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/global/homes/v/vo13/mambaforge/envs/cf-xarray-bug/lib/python3.11/site-packages/cf_xarray/__init__.py", line 1, in <module>
    from .accessor import CFAccessor  # noqa
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/global/homes/v/vo13/mambaforge/envs/cf-xarray-bug/lib/python3.11/site-packages/cf_xarray/accessor.py", line 41, in <module>
    xr.core.resample.Resample,
    ^^^^^^^^^^^^^^^^
AttributeError: module 'xarray.core' has no attribute 'resample'