Repository navigation
[Bug]: Plotting code executes without displaying plots in the Console but works fine in the "Run" window #28581
Description
Bug summary
Previously, I was able to generate plots in PyCharm CE Console using Python 3.7. However, after upgrading to Python 3.11 and 3.12, the plots no longer appear in the Console. But the plots still generate successfully when running the same code in the "Run" window of PyCharm.
Code for reproduction
import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6])
plt.xlabel('X-axis')
plt.ylabel('Y-axis')
plt.title('Example Plot')
plt.show()Actual outcome
The Python Launcher continuously bounces in my dock and eventually becomes unresponsive.
Expected outcome
Plotting should be consistent across PyCharm environments regardless of the Python version used.
Additional information
No response
Operating system
Mac OS
Matplotlib Version
3.9.1
Matplotlib Backend
No response
Python version
3.11
Jupyter version
No response
Installation
pip
Activity
story645 commented on Jul 16, 2024
Does this happen across different versions of Matplotlib? Or is it only a 3.9 error?
tacaswell commented on Jul 16, 2024
Which backend are you using?
dododobetter commented on Jul 17, 2024
This issue only happened after I upgraded Python 3.7 to 3.12 and re-installed all packages. It worked fine for Python 3.7
dododobetter commented on Jul 17, 2024
macosx
tacaswell commented on Jul 17, 2024
Unfortunately our version numbers and Python's are overlapping at the moment. If you go to mpl38 with py312 does it work?
My suspicion is that this is related to https://matplotlib.org/stable/users/explain/figure/interactive_guide.html#input-hook-integration . The very short version is that to get "live" figures and an interactive prompt then the two infinite loop (the REPL of the prompt and the event loop of the GUI framework) need to be time-shared somehow. The story is further complicated because the behavior of plt.show() depends on some global state (controlled by plt.ion() / plt.ioff()) so in the two cases plt.show() may be doing different things. If you do plt.show(block=True) in the shell I suspect it will give you a figure, but block the prompt.
I think that this needs to be reported as a bug to pycharm.
dododobetter commented on Jul 18, 2024
It works now, thanks so much!! I re-installed matplotlib 3.8.0 and now the plot can show as usual from PyCharm console. I will close this ticket now.
tacaswell commented on Jul 18, 2024
I'm going to re-open this as that identifies we had a regression between 3.8 and 3.9, but does not actually fix the problem!
tacaswell commented on Jul 18, 2024
attn @oscargus
WenkeRen commented on Jul 18, 2024
Same problem came to me. I'm happy to share some error report and my try to help the fixing.
When I'm using python=3.11, ipython==8.26.0 and matplotlib==3.9.1
Run python directly from command line: No error, plot good;
Run ipython directly from command line: No error, No plot;
Run ipython with pycharm: Error raised from ipython:
Traceback (most recent call last): File "/Users/XXX/Applications/PyCharm Professional Edition.app/Contents/plugins/python/helpers/pydev/pydev_ipython/inputhook.py", line 558, in enable_gui gui_hook = guis[gui] ~~~~^^^^^ KeyError: 'macosx' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/XXX/Applications/PyCharm Professional Edition.app/Contents/plugins/python/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 143, in enable_gui return real_enable_gui(gui, app) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/XXX/Applications/PyCharm Professional Edition.app/Contents/plugins/python/helpers/pydev/pydev_ipython/inputhook.py", line 564, in enable_gui raise ValueError(e) ValueError: Invalid GUI request 'macosx', valid ones are:dict_keys(['none', 'osx', 'tk', 'gtk', 'wx', 'qt', 'qt4', 'qt5', 'qt6', 'glut', 'pyglet', 'gtk3']) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/IPython/core/interactiveshell.py", line 3577, in run_code exec(code_obj, self.user_global_ns, self.user_ns) File "<ipython-input-2-9c4300595d45>", line 4, in <module> plt.plot([1, 2, 3], [4, 5, 6]) File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 3794, in plot return gca().plot( ^^^^^ File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 2742, in gca return gcf().gca() ^^^^^ File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 1093, in gcf return figure() ^^^^^^^^ File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 1027, in figure manager = new_figure_manager( ^^^^^^^^^^^^^^^^^^^ File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 549, in new_figure_manager _warn_if_gui_out_of_main_thread() File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 526, in _warn_if_gui_out_of_main_thread canvas_class = cast(type[FigureCanvasBase], _get_backend_mod().FigureCanvas) ^^^^^^^^^^^^^^^^^^ File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 358, in _get_backend_mod switch_backend(rcParams._get("backend")) File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 400, in switch_backend switch_backend(candidate) File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 521, in switch_backend install_repl_displayhook() File "/Users/XXX/opt/anaconda3/envs/XXX/lib/python3.11/site-packages/matplotlib/pyplot.py", line 312, in install_repl_displayhook ip.enable_gui(ipython_gui_name) File "/Users/XXX/Applications/PyCharm Professional Edition.app/Contents/plugins/python/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 145, in enable_gui raise UsageError("%s" % e) IPython.core.error.UsageError: Invalid GUI request 'macosx', valid ones are:dict_keys(['none', 'osx', 'tk', 'gtk', 'wx', 'qt', 'qt4', 'qt5', 'qt6', 'glut', 'pyglet', 'gtk3'])When I only downgrade matplotlib=3.8.4, everything works fine. I also tried only downgrade ipython=8.16. The errors gone but still no plot. Seems the problem comes from some incompatibility of mpl39 and ipython.
jseabold commented on Jul 22, 2024
Just ran into this with ipython 8.18.1, python 3.9.5, and matplotlib 3.9.0. Wasn't sure what was going on until I found this. Downgrading matplotlib to 3.8.x worked for me.
Confirming that this does indeed show the plot from ipython and blocks with matplotlib 3.9.0.
ianthomas23 commented on Aug 1, 2024
@WenkeRen When running ipython in PyCharm your error traceback states precisely what the problem is, it is expecting to use "osx" as the GUI name not the "macosx" that Matplotlib uses:
matplotlib/lib/matplotlib/backends/registry.py
Line 42 in f7b3def
IPython has to deal with this too (since Matplotlib 3.9.0, PR #27948), there is an explicit conversion at
https://github.com/ipython/ipython/blob/128bd582b9894b8ae9ff577aafe13f5fdb39c3cb/IPython/core/pylabtools.py#L539-L542.
A similar change is needed in PyCharm so it needs to be reported there, it cannot be fixed here.
If you are also seeing this:
then that is a separate issue. I cannot reproduce this on an M3 mac, python 3.11.9, ipython 8.26.0, matplotlib 3.9.0 or 3.9.1, using macos backend.
@jseabold Are you running this in PyCharm? I cannot reproduce this with the same python, matplotlib and ipython versions when running ipython directly from the command line.
WenkeRen commented on Aug 3, 2024
@ianthomas23 I'm so sorry. I find I cannot reproduce this problem in command line too. Probably I made some mistake at that time. So it seems the only problem is from PyCharm. Thanks for your help.
ianthomas23 commented on Aug 3, 2024
That's OK, it is good to clarify.
timhoffm commented on Aug 5, 2024
Is there something to be done on our side or can this be closed?
ianthomas23 commented on Aug 5, 2024
There is nothing for us to do here, it can be closed.
landoskape commented on Feb 7, 2025
I have this issue too - just started using matplotlib 3.10 and it started (with a newer python too).
I'm not exactly sure what needs to change upstream in pycharm or vscode (I'm using windows + vscode, python 3.11 and mpl 3.10). If one of the maintainers knows, would you share so I can try to bug vscode support about this? It was so nice when this worked in all settings....
(sorry for the duplicate message from #28979 just realized I should ask this here)