Fis Trivial <ybbs.da...@hotmail.com> writes: >> Do you have a matplotlibrc file that sets a Qt-based backend? The default >> backend is TkAgg, which does not require Qt. (Note that PySide is a Qt >> interface for Python.) >> > I myself have never created such a file. > > I searched home with `find . -iname "*matplotlib*"`, didn't find the rc file > you mentioned except in some virtualenvs. But that should not be related. > > By searching /etc as root, didn't find it either.
After some more checks, I can confirm your bug report. Matplotlib actually does use Qt by default under Python 3. I still use Python 2 for most of my work, and under Python 2 matplotlib uses TkAgg as its default backend. After a quick look at the definition of python-matplotlib, I suspect that python-pyqt should be a propagated-input, not a plain input. I will try this out as soon as possible. Konrad.