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Qt5 "No working GUI backend found for matplotlib" #17
Description
I have tried to use PythonPlot with PyQt5, however it can not initialize and I receive the error:
No working GUI backend found for matplotlib
After some digging I determined the error to originate from fixqtpath() in pygui.jl. where somekind of exception occurs. I haven't found the excact issue, but by commenting the fixqtpath() in function qt_eventloop(QtCore::Py, sec::Real=50e-3) and configuring my QT_PLUGIN_PATH environment path to the correct QT folder, I got the backend to load as intended.
Activity
zeitouni commentedon Oct 6, 2023
@magnusbbc I'm having the same issue and it's a pain. Everything works fine if I use matplotlib directly from PythonCall but with PythonPlot it doesn't find the GUI.
I am struggling to find the folder for QT though to do this fix. Any advice on how I can do that?
ufechner7 commentedon Oct 11, 2023
Same problem here... Ubuntu 22.04.
ufechner7 commentedon Feb 1, 2026
Since the PR has been merged, can someone close this issue?