cannot import name 'file_hash' from 'pooch.utils'

[obarnstedt]

• Tell us a bit about your setup:

1. Operating system (Linux/macOS/Windows): Ubuntu 20.04.3 LTS

2. Python version (3.x): 3.9

3. Working environment (Python IDE/Jupyter Notebook/other): Jupyter Lab

4. CaImAn version*: 1.9.0 + 1.9.1 + 1.9.2 dev

5. CaImAn installation process (pip install ./pip install -e ./conda): conda + conda + pip install -e .

• Describe the issue that you are experiencing Trying to import caiman.

• Copy error log below

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
/tmp/ipykernel_1345334/3686630611.py in <module>
     24                     level=logging.DEBUG)
     25 
---> 26 import caiman as cm
     27 from caiman.base.movies import load
     28 from caiman.summary_images import local_correlations

~/Git/CaImAn/caiman/__init__.py in <module>
      2 
      3 import pkg_resources
----> 4 from .base.movies import movie, load, load_movie_chain
      5 from .base.timeseries import concatenate
      6 from .cluster import start_server, stop_server

~/Git/CaImAn/caiman/base/movies.py in <module>
     28 import scipy
     29 from scipy.io import loadmat
---> 30 from skimage.transform import warp, AffineTransform
     31 from skimage.feature import match_template
     32 import sklearn

~/anaconda3/envs/lindoscope_1p/lib/python3.9/site-packages/skimage/__init__.py in <module>
    133                              img_as_bool,
    134                              dtype_limits)
--> 135     from .data import data_dir
    136     from .util.lookfor import lookfor
    137 

~/anaconda3/envs/lindoscope_1p/lib/python3.9/site-packages/skimage/data/__init__.py in <module>
     62 
     63 try:
---> 64     from pooch.utils import file_hash
     65 except ModuleNotFoundError:
     66     # Function taken from

ImportError: cannot import name 'file_hash' from 'pooch.utils' (/home/obarnste/anaconda3/envs/lindoscope_1p/lib/python3.9/site-packages/pooch/utils.py)

I think this is a problem with a moved function in pooch used by Scikit-Image, see these threads: https://github.com/fatiando/pooch/issues/252 https://github.com/scikit-image/scikit-image/issues/5528

[obarnstedt]

Manually downgrading pooch to 1.4.0 solves the issue for now.

[pgunn]

This looks like an upstream issue; it's good to have the issue filed so we're aware of it here, but it's probably nothing we can fix. You might be able to file a bugfix against the scikit-image conda package to have them pin the version until upstream sorts this out.

[EricThomson]

Closing because it appears the issue is resolved.