CODEWITHSUNDEEP
pythonqtmatplotlibcondapyside6
Ricardo May
Ricardo May

Reputation: 65

PySide6.1 not compatible with matplotlib 3.4

When I only install PySide6, the GUI program works well, but once I have installed matplotlib with its dependency packages(including pyqt5), then the GUI program won't work and output the error message below

This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

The problem won't be resolved even after uninstalling matplotlib again, in addition, the matplotlib is even not imported in my program.

In addition, PySide6 is installed via pip and matplotlib is installed via conda.

Upvotes: 4

Views: 3659

Answers (2)

Antoine Letoublon
Antoine Letoublon

Reputation: 1

I had trouble with pyside6 and matplotlib I did perform an update

update to solve compatibility problems

python -m pip install -U matplotlib and it seems to work now.

Upvotes: 0

eyllanesc
eyllanesc

Reputation: 243975

Reviewing the source code and not knowing an official announcement I can point out that at the time of writing this post matplotlib does not support any Qt6 backend so PySide6 will not be used.

Reviewing this pull request I see that they are working on incorporating it so that Qt6 will probably already be supported in future releases.

Upvotes: 3

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