DepreciationWarning in toolbar causes AttributeError

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
jupyter, python
Domain
backend

Research direction

Start by reading ipympl/backend_nbagg.py at lines 162-170 and reproduce toolbar property access with the reported Python 3.11.3 and ipympl 0.9.3 versions. Check the mixin-style class behavior described in the linked discussion. Done means toolbar properties no longer emit the warning or raise the reported AttributeError.

Written by the indexing model from the issue text.

Description

Describe the issue

Accessing toolbar properties causes AttributeError: 'super' object has no attribute '__getattr__'

image

The problematic lines are here:

https://github.com/matplotlib/ipympl/blob/238d7965c52f3fe8de02242c096714e064847819/ipympl/backend_nbagg.py#L162-L170

This is most probably caused by the mixin-style classes ... a explanation (and a possible solution) might be this:

https://stackoverflow.com/a/28864246/9703451

Versions

 3.11.3 | packaged by conda-forge | (main, Apr  6 2023, 08:50:54) [MSC v.1934 64 bit (AMD64)]
ipympl version: 0.9.3
Dominant language
Jupyter Notebook
Stars
1.7k
Forks
234
PR merge metrics
No merged PRs in 30d

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