Matplotlib is_frame_like is deprecated, and will be removed soon

[tvst]

To repro, run this:

import matplotlib.pyplot as plt
import plotly.tools
f = plt.figure()
plt.plot([1,2,3,4])
plotly.tools.mpl_to_plotly(f)

...which will result in this warning being printed to the console:

(...)/lib/python3.6/site-packages/plotly/matplotlylib/mpltools.py:368: MatplotlibDeprecationWarning:                                     
The is_frame_like function was deprecated in Matplotlib 3.1 and will be removed in 3.3.

[jonmmease]

Thanks @tvst

[ycaokris]

I had this same issue when trying to run tls.mpl_to_plotly() in python3.7 when I was plotting survival curve in dash app following survival-analysis-r-vs-python.
Also Userwarning same as raised in this [community thread] like: (https://community.plot.ly/t/some-parts-of-figure-not-displayed-when-converting-matplotlib-figure-to-plotly-figure-and-displaying-on-webpage-with-dash/14449)
Again it's not an issue affecting app performance, just console logging.

[DibyojyotiS]

I am also facing the same issue, the portion of my code where I am using plt (matplotlib.pyplot as plt) :

figure = plt.figure(figsize= size, facecolor= 'white')
subplot = figure.add_subplot(1,1,1)
 .
 .
 .
rectangle = plt.Rectangle((tx,H), width, height, color=mycolor)
subplot.add_patch(rectangle)

plt.xlim([0, max_x])
plt.ylim([0,H])
plt.yticks(pos_labels, labels)

    .
    .

plotly throws the warning:

The is_frame_like function was deprecated in Matplotlib 3.1 and will be removed in 3.3.

/users/a/.conda/envs/tf_gpu/lib/python3.7/site-packages/plotly/matplotlylib/renderer.py:512: UserWarning:

I found a path object that I don't think is part of a bar chart. Ignoring.

And misses all the rectangles, and all the y-axis labels set by 'plt.yticks(pos_labels, labels)'.

[nicolaskruchten]

Indeed, our matplotlib conversion utility should be considered deprecated at this point as it isn’t being actively maintained to track deprecations and changes in matplotlib itself so it works best with older versions of matplotlib. I should update the docstrings accordingly.

[nicolaskruchten]

That said, if someone wants to work on it to bring it back up to date I’d be happy to work with them to integrate the changes :)