mplexporter not getting Collection offset position due to matplotlib API changes in v3.5

Using plotly 5.6.0 and matplotlib 3.5.1

https://matplotlib.org/devdocs/api/prev_api_changes/api_changes_3.5.0.html#classes-methods-and-attributes

Collection.set_offset_position and Collection.get_offset_position have been removed; the offset_position of the Collection class is now “screen”

Example code to reproduce the problem:

import numpy as np
from matplotlib import pyplot as plt
from plotly import tools

x = np.arange(10)
y = x **2.

fig1 = plt.figure(1)
plt.vlines(x, 0, max(y))

tools.mpl_to_plotly(fig1)

gives

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\------\AppData\Local\Programs\Python\Python310\lib\site-packages\plotly\tools.py", line 112, in mpl_to_plotly
    matplotlylib.Exporter(renderer).run(fig)
  File "C:\Users\------\AppData\Local\Programs\Python\Python310\lib\site-packages\plotly\matplotlylib\mplexporter\exporter.py", line 53, in run
    self.crawl_fig(fig)
  File "C:\Users\------\AppData\Local\Programs\Python\Python310\lib\site-packages\plotly\matplotlylib\mplexporter\exporter.py", line 124, in crawl_fig
    self.crawl_ax(ax)
  File "C:\Users\------\AppData\Local\Programs\Python\Python310\lib\site-packages\plotly\matplotlylib\mplexporter\exporter.py", line 146, in crawl_ax
    self.draw_collection(ax, collection)
  File "C:\Users\------\AppData\Local\Programs\Python\Python310\lib\site-packages\plotly\matplotlylib\mplexporter\exporter.py", line 289, in draw_collection
    offset_order = offset_dict[collection.get_offset_position()]
AttributeError: 'LineCollection' object has no attribute 'get_offset_position'. Did you mean: '_offset_position'?

[SetsunaAng]

@alberttorosyan Speaking out loud, it should be a simple fix that requires changes in a few lines at:

https://github.com/plotly/plotly.py/blob/4b5392221bd71d5fa338bfc2144a2fcf3451c177/packages/python/plotly/plotly/matplotlylib/mplexporter/exporter.py#L289-L300

However, Plotly doesn’t have a development/contribution guide, I don’t know how they would like to handle this kind of deprecation. any thoughts?

I’m not using Plotly directly but mplleaflet and I got the same error. I managed to make it work by replacing in this exporter.py file offset_order = offset_dict[collection.get_offset_position()] by offset_order = offset_dict[collection._offset_position]

Hope it helps someone!

[alberttorosyan]

we finally moved away from this. as an alternative, converting matplotlib figures to image is used in places where interactions (zoom in/out etc.) are not critical.