plotly express error: cannot import name 'qualitative'

Hi,

I’m trying to create a Choropleth map using plotly express. However when importing plotly express, I got an error: code: import plotly.express as px error:

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-39-86e89bd44552> in <module>
----> 1 import plotly.express as px

/opt/conda/envs/Python36/lib/python3.6/site-packages/plotly/express/__init__.py in <module>
     13     )
     14 
---> 15 from ._imshow import imshow
     16 from ._chart_types import (  # noqa: F401
     17     scatter,

/opt/conda/envs/Python36/lib/python3.6/site-packages/plotly/express/_imshow.py in <module>
      1 import plotly.graph_objs as go
      2 from _plotly_utils.basevalidators import ColorscaleValidator
----> 3 from ._core import apply_default_cascade
      4 import numpy as np
      5 

/opt/conda/envs/Python36/lib/python3.6/site-packages/plotly/express/_core.py in <module>
      4 
      5 from _plotly_utils.basevalidators import ColorscaleValidator
----> 6 from .colors import qualitative, sequential
      7 import math
      8 import pandas as pd

ImportError: cannot import name 'qualitative'

This issue is different from issue plotly #26793, plotly express #1672 and #123.

I have tried uninstalling plotly, both via pip and conda and reinstalling plotly version 4 as suggested at the main github page, pypi and plotly. However there is no success.

Just to be clear, I run an environment on cloud.IBM.com notebook, python 3.6, built-in plotly 3.6.1.

I have no further clue how to fix this, please provide some help. Any suggestion is appreciated.

Thanks, Hung

[kenaitian]

i did what @nhohung suggested above and which worked for him but having to restart the kernel from the IBM Watson Notebook then fixed the issue.

[Jeremias-Tivane]

THE BEST WAY You can install it in command line via pip: pip install plotly Or Install specific version: pip install "plotly==4.5.2"