>I can help you narrow it down a bit. The problem actually occurs inside
>this function call somehow. You can verify this by doing this:
>
>
>fig,axes = plt.subplots(2,1, figsize=(20, 15))
>
>print ("axes[0].get_figure()=",axes[0].get_figure())
>
>You'll find that get_figure() is returning None, when it should be
>returning Figure(2000x1500). So plt.subplots is not doing something
>properly which was corrected at some point. Oddly enough, with pandas
>1.1.4 and matplotlib 3.2.2 (which is what my system has by default),
>there is no error, although the graph is blank.
>
>In my venv, when I upgrade matplotlib from 3.3.4 to 3.5, the problem
>also goes away. 3.4.0 also works.
>
>Honestly your solution is going to be to provide a virtual environment
>with your script. That way you can bundle the appropriate dependencies
>without modifying anything on the host system.
Thanks for the feedback. You are right.
I agree that virtualenv is the most safest method at this time.
Regards,
Mahmood
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