installation issue

Dear all ,

I have seen very strange behaviour after installing hvplot. I have installed them using conda install -c pyviz holoviews bokeh hvplot

ALL software version info

python3.10 ,Ubuntu 22 ,hvplot=8.1

Description of expected behavior and the observed behavior

import hvplot.xarray

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In [1], line 12
     10 import ipyleaflet
     11 import matplotlib.pyplot as plt
---> 12 import hvplot.xarray
     13 from datashader.transfer_functions import shade, stack
     14 from datashader.colors import Elevation

File /raid-manaslu/maref/Software/anaconda3/envs/workshop-grenoble-2022-10/lib/python3.10/site-packages/hvplot/__init__.py:70
     66 import holoviews as _hv
     68 from holoviews import Store, render  # noqa
---> 70 from .converter import HoloViewsConverter
     71 from .interactive import Interactive
     72 from .ui import explorer  # noqa

File /raid-manaslu/maref/Software/anaconda3/envs/workshop-grenoble-2022-10/lib/python3.10/site-packages/hvplot/converter.py:82
     77         else:
     78             raise Exception('PeriodicCallback not running.')
---> 82 class HoloViewsConverter:
     83     """
     84     Generic options
     85     ---------------
   (...)
    235         the default is 'Wikipedia'.
    236     """
    238     _gridded_types = [
    239         'image', 'contour', 'contourf', 'quadmesh', 'rgb', 'points',
    240         'dataset'
    241     ]

File /raid-manaslu/maref/Software/anaconda3/envs/workshop-grenoble-2022-10/lib/python3.10/site-packages/hvplot/converter.py:360, in HoloViewsConverter()
    343 _legend_positions = (
    344     "top_right", "top_left", "bottom_left", "bottom_right",
    345     "right", "left", "top", "bottom"
    346 )
    348 _default_plot_opts = {
    349     'logx': False,
    350     'logy': False,
   (...)
    355     'shared_axes': True
    356 }
    358 _default_cmaps = {
    359     'linear': 'kbc_r',
--> 360     'categorical': cc.palette['glasbey_category10'],
    361     'cyclic': 'colorwheel',
    362     'diverging': 'coolwarm'
    363 }
    365 def __init__(
    366     self, data, x, y, kind=None, by=None, use_index=True,
    367     group_label=None, value_label='value', backlog=1000,
   (...)
    382 ):
    383     # Process data and related options
    384     self._redim = fields

AttributeError: module 'colorcet' has no attribute 'palette'

[maximlt]

I’ve tried reproducing this issue and could not. I agree that it looks like a broken installation and that the solution should be to install it in a new and clean environment. If the issue occurs again in that new environment, please report it here again, indicating what commands you ran to create the environment and install hvPlot.

[jbednar]

To me it seems like this is a broken installation of colorcet somehow; there should definitely be a cc.palette object. I’d try installing in a new, clean environment.