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plotly.express import raises ModuleNotFound in environment without pandas. #2125

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CarlAndersson opened this issue Jan 24, 2020 · 1 comment · Fixed by #2132
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plotly.express import raises ModuleNotFound in environment without pandas. #2125

CarlAndersson opened this issue Jan 24, 2020 · 1 comment · Fixed by #2132
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v4.5.1

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@CarlAndersson
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Importing plotly.express when pandas is not available raises ModuleNotFoundError: No module named 'pandas', instead of the intended ImportError: Plotly express requires pandas to be installed.
This happens on from ._imshow import imshow.
Perhaps this import should be moved below the code that will output a more helpful message?
@emmanuelle emmanuelle mentioned this issue Jan 27, 2020
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@emmanuelle
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Thank you @CarlAndersson ! This should be fixed by #2132.

@nicolaskruchten nicolaskruchten added this to the v4.5.1 milestone Feb 19, 2020
@shirriff shirriff mentioned this issue Mar 14, 2020
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changed order of imports for better error messages plotly/plotly.py
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@nicolaskruchten @emmanuelle @CarlAndersson