Install python-pyside.qtgui by entering the following commands in the terminal:
sudo apt update sudo apt install python-pyside.qtgui
Description:
Qt 4 GUI module - Python bindings
Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality. . This package provides Python bindings for the QtGui module.
Homepage: http://www.pyside.org/
Version: 1.2.2+source1-3
Section: universe/python