Dependency pint moved location of units.py with v0.20

[kyleredilla]

Generic Issue

• xclim version: 0.38.0
• Python version: 3.9.13
• Operating System: CentOS 7.9.2009

Description

Tried to import xclim.indices and got an import error for dependency pint.unit.

It looks like pint.unit has moved to pint/facets/plain/unit.py with version 0.20. I'm not actually sure if this is an issue with xclim or conda but figured I'd share.

pint 0.19.2 <- 0.20 comparison

Also thank you, this package is amazing, hope I can contribute one day.

What I Did

Built new conda environment with:

conda create -n new_env python=3.9.13 xarray netcdf4 xclim <other packages>

Then imported xclim.indices in a Jupyter notebook:

import xclim.indices as xci

What I Received

I got an import error, didn't think to save the whole thing but it was this at the root:

ModuleNotFoundError: No module named 'pint.unit'


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[aulemahal]

Hi @kyleredilla !

Thanks for the issue. Indeed, there was a refactor in pint 0.20 and it broke xclim... Good news is that it was fixed in #1212!

We had a plan to publish a new version of xclim (0.39) tomorrow, but I fear the Pull Request queue is a bit loaded and it might have to wait a few more days... Downgrading pint should be a simple temporary fix, if that is possible for you!

[kyleredilla]

Ahh I figured this may have been already fixed. Yep already working with the downgrade. Thank you!