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psyplot / psy-view

An ncview-like GUI with psyplot
https://psyplot.github.io/psy-view
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ImportError during launch #66

Open marcowurth opened 3 months ago

marcowurth commented 3 months ago

Hi, I just installed psy-view on Linux via my miniconda: conda create -n psyplot -c conda-forge --override-channels psy-view

After then typing psy-view launching fails due to an import error in psy-simple with a matplotlib method:

(psyplot) 14:30 ~/Documents/stuff $psy-view Traceback (most recent call last): File "/home/marcowurth/miniconda3/envs/psyplot/bin/psy-view", line 11, in sys.exit(main()) ^^^^^^ File "/home/marcowurth/miniconda3/envs/psyplot/lib/python3.11/site-packages/psy_view/init.py", line 161, in main start_app(ds, args.name, args.plotmethod, args.preset) File "/home/marcowurth/miniconda3/envs/psyplot/lib/python3.11/site-packages/psy_view/init.py", line 70, in start_app from psy_view.ds_widget import DatasetWidgetStandAlone File "/home/marcowurth/miniconda3/envs/psyplot/lib/python3.11/site-packages/psy_view/ds_widget.py", line 42, in from psy_view.plotmethods import ( File "/home/marcowurth/miniconda3/envs/psyplot/lib/python3.11/site-packages/psy_view/plotmethods.py", line 37, in import psy_simple.widgets.colors as pswc File "/home/marcowurth/miniconda3/envs/psyplot/lib/python3.11/site-packages/psy_simple/widgets/colors.py", line 30, in import psy_simple.colors as psc File "/home/marcowurth/miniconda3/envs/psyplot/lib/python3.11/site-packages/psy_simple/colors.py", line 24, in from matplotlib.cm import get_cmap as mpl_get_cmap ImportError: cannot import name 'get_cmap' from 'matplotlib.cm' (/home/marcowurth/miniconda3/envs/psyplot/lib/python3.11/site-packages/matplotlib/cm.py)

I checked the module in question matplotlib/cm.py (matplotlib-base v3.9.0) and it contains the method get_cmap twice, in class ColormapRegistry and in ScalarMappable. Hope this helps.

marcowurth commented 3 months ago

Update: matplotlib.cm.get_cmap is deprecated since v3.7. Seems straight-forward to replace your get_cmap calls with the newer matplotlib.colormaps[name], so that psy-view works with newer matplotlib versions too.