PySide instead of PyQt4 as the prerequisite for matplotlib Qt4Agg backend

Question

I have a quick question with regard to the prerequisite of using Qt4Agg backend with matplotlib. In the documentation , it said Qt4Agg requires PyQt4. However, since matplotlib can now work perfectly with PySide instead of PyQt4, can I install PySide only? Do I still need to install PyQt4 to let matplotlib work with Pyside?

I am asking this question because in the example of using matplotlib with PySide, the backend has to be switched to Qt4Agg and requires PyQt4 according to the documentation.

Thanks!

Answer 1

在你的rcparam文件中添加该行

backend.qt4 : PySide        # PyQt4 | PySide

Answer 2

You only have to install Pyside. and then do something like this

os.environ['QT_API'] = 'pyside' 
from matplotlib import use
use('Qt4Agg') 
import pylab as plt

Answer 3

In addition to the accepted answer, if you don't want to modify the rcParam file:

from matplotlib import rc
rc('backend', qt4="PySide")