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1. ucfbrd

   changed the title [-][Bug]: [/-] [+][Bug]: 3.6.0 doesn't interact well with pycharm throwing "backend_interagg" exception[/+] on Sep 16, 2022
2. tacaswell

   added this to the v3.6.1 milestone on Sep 16, 2022
3. tacaswell commented on Sep 16, 2022

   

   tacaswell

   on Sep 16, 2022

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   Does this change make it work?

   ✔ 14:16:01 $ git diff
   diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
   index f5c86de126..1e94d90d15 100644
   --- a/lib/matplotlib/pyplot.py
   +++ b/lib/matplotlib/pyplot.py
   @@ -263,7 +263,6 @@ def switch_backend(newbackend):
   
        backend_mod = importlib.import_module(
            cbook._backend_module_name(newbackend))
   -    canvas_class = backend_mod.FigureCanvas
   
        required_framework = _get_required_interactive_framework(backend_mod)
        if required_framework is not None:
   @@ -293,6 +292,8 @@ def switch_backend(newbackend):
        # also update backend_mod accordingly; also, per-backend customization of
        # draw_if_interactive is disabled.
        if new_figure_manager is None:
   +        # only try to get the canvas class if have opted into the new scheme
   +        canvas_class = backend_mod.FigureCanvas
            def new_figure_manager_given_figure(num, figure):
                return canvas_class.new_manager(figure, num)
   
4. tacaswell

   added a commit that references this issue on Sep 16, 2022

   FIX: only expect FigureCanvas on backend module if using new style

   This issue will close once commit 0d37358 is merged into the 'main' branch.

   0d37358
5. TLCFEM commented on Sep 16, 2022

   

   TLCFEM

   on Sep 16, 2022

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   I do not think this PR fixes the problem, after applying the changes, now exception is thrown on Line 185

   line 185, in _get_required_interactive_framework
       if not hasattr(backend_mod.FigureCanvas, "required_interactive_framework"):
   AttributeError: module 'backend_interagg' has no attribute 'FigureCanvas'. Did you mean: 'FigureCanvasAgg'?
   
6. TLCFEM commented on Sep 16, 2022

   

   TLCFEM

   on Sep 16, 2022

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   One more check needs to be added:

   def _get_required_interactive_framework(backend_mod):
       if not hasattr(backend_mod, 'FigureCanvas') or not hasattr(backend_mod.FigureCanvas, "required_interactive_framework"):
           _api.warn_deprecated(
               "3.6", name="Support for FigureCanvases without a "
               "required_interactive_framework attribute")
           return None
       # Inline this once the deprecation elapses.
       return backend_mod.FigureCanvas.required_interactive_framework
   
7. oscargus

   closed this as completedin #23912on Sep 17, 2022
8. QuLogic commented on Sep 17, 2022

   

   QuLogic

   on Sep 17, 2022

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   I don't believe the latter check was implemented.
9. QuLogic

   reopened this on Sep 17, 2022
10. TLCFEM commented on Sep 17, 2022

    

    TLCFEM

    on Sep 17, 2022

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    I don't believe the latter check was implemented.

    No, it's not.
11. HarmvandenBrand commented on Sep 22, 2022

    

    HarmvandenBrand

    on Sep 22, 2022

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    Can confirm this is still an issue with matplotlib 3.6.0 on python 3.10 in PyCharm 2022.2.2

    Reacted by Josua Müller, Sean Grogan, Andrea Lacava, MaurusGubser, Gardes Frédéric, Marcus Ong, Roman Titov, Arman Haghanifar, Null2947, BKI92 and 4 more

    Reacted by Jordi Smit
12. timhoffm

    added

    status: confirmed bug

    third-party integration

    on Sep 23, 2022
13. ysun612

    added a commit that references this issue on Sep 24, 2022

    Force matplotlib <3.6.0 to work around matplotlib/matplotlib#23911

    d1e405b
14. QuLogic

    added a commit that references this issue on Sep 27, 2022

    Don't require FigureCanvas on backend module more

    This issue will close once commit bd5dca1 is merged into the 'main' branch.

    bd5dca1
15. nfeliccia commented on Sep 27, 2022

    

    nfeliccia

    on Sep 27, 2022

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    Not working on PycharmPro

    

    import matplotlib.pyplot as plt
    
    pizza, marshmallows = plt.subplots(1, 1)
    print(pizza)
    
    

    Error

    Traceback (most recent call last):
      File "F:\gt_stats_iii\scipy_stats_binom_examples.py", line 8, in <module>
        pizza, marshmallows  = plt.subplots(1, 1)
      File "F:\gt_stats_iii\venv\lib\site-packages\matplotlib\pyplot.py", line 1430, in subplots
        fig = figure(**fig_kw)
      File "F:\gt_stats_iii\venv\lib\site-packages\matplotlib\_api\deprecation.py", line 454, in wrapper
        return func(*args, **kwargs)
      File "F:\gt_stats_iii\venv\lib\site-packages\matplotlib\pyplot.py", line 771, in figure
        manager = new_figure_manager(
      File "F:\gt_stats_iii\venv\lib\site-packages\matplotlib\pyplot.py", line 346, in new_figure_manager
        _warn_if_gui_out_of_main_thread()
      File "F:\gt_stats_iii\venv\lib\site-packages\matplotlib\pyplot.py", line 336, in _warn_if_gui_out_of_main_thread
        if (_get_required_interactive_framework(_get_backend_mod()) and
      File "F:\gt_stats_iii\venv\lib\site-packages\matplotlib\pyplot.py", line 206, in _get_backend_mod
        switch_backend(dict.__getitem__(rcParams, "backend"))
      File "F:\gt_stats_iii\venv\lib\site-packages\matplotlib\pyplot.py", line 266, in switch_backend
        canvas_class = backend_mod.FigureCanvas
    AttributeError: module 'backend_interagg' has no attribute 'FigureCanvas'. Did you mean: 'FigureCanvasAgg'?
    
    Process finished with exit code 1
    

    Reacted by MaurusGubser, Gardes Frédéric, MS511, Arman Haghanifar, vanamalivanam, Eleonora, JanDudek, Thiago S. Gouvêa, Wang Ziming, Yak0vkaSup and 1 more
16. oscargus

    closed this as completedin #24019on Sep 28, 2022
17. melissawm

    added 2 commits that reference this issue on Dec 19, 2022

    FIX: only expect FigureCanvas on backend module if using new style

    This issue will close once commit c368f98 is merged into the 'main' branch.

    c368f98

    Don't require FigureCanvas on backend module more

    This issue will close once commit b5aa6c8 is merged into the 'main' branch.

    b5aa6c8
18. mposter1 commented on Nov 8, 2023

    

    mposter1

    on Nov 8, 2023

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    Problem still occurring in PyCharm for me. Still requires FigureCanvas on backend module, running matplotlib 3.8.1. See line 342 of pyplot.py
19. ksunden commented on Nov 8, 2023

    

    ksunden

    on Nov 8, 2023

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    Not having a FigureCanvas class as a backend was deprecated in mpl 3.6 and expired in 3.8, it looks like the most recent versions of PyCharm do have it, so perhaps you need to update?

    Reacted by Thiago S. Gouvêa
20. QuLogic commented on Nov 8, 2023

    

    QuLogic

    on Nov 8, 2023

    Member

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    AFAICT, JetBrains added those values over a year ago, but I cannot tell from the tags exactly what version that means.
21. mposter1 commented on Nov 9, 2023

    

    mposter1

    on Nov 9, 2023

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    Update fixed. Thanks.
22. benyoung-libenyang commented on Nov 10, 2023

    

    benyoung-libenyang

    on Nov 10, 2023

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    maybe you cloud try.

    Reacted by Artur, libenyang, annakorotysheva, oukohou, JanPecka, Shangyi Zhu, natesun1, Chongyi Zheng, wslhhh1994, qq3399476669 and 1 more
23. oukohou commented on Dec 19, 2023

    

    oukohou

    on Dec 19, 2023

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    maybe you cloud try.

    great，this fixed my problem.
24. imgbot

    added 2 commits that reference this issue on Apr 19, 2026

    FIX: only expect FigureCanvas on backend module if using new style

    This issue will close once commit 8b3234c is merged into the 'main' branch.

    8b3234c

    Don't require FigureCanvas on backend module more

    This issue will close once commit 2ea2c7c is merged into the 'main' branch.

    2ea2c7c