The example shown in https://matplotlib.org/examples/user_interfaces/embedding_in_qt5.html runs fine when using PyQt5, but when using PySide2 it results in an error (Fatal Python error: deallocating None) as soon as the application is closed.
- duplicates
- 
                    PYSIDE-585 Segfault due to reference counting when exiting Jupyter QtConsole -         
- Closed
 
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- is duplicated by
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                    PYSIDE-647 Once more a fatal Python error on close when running embedding_in_qt5.py -           
- Closed
 
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