Embedding Matplotlib in to a Qt GUI application

In this recipe, we will learn how to embed a Matplotlib canvas in a Qt GUI application.

Getting ready

Import the required libraries:

import sys
import numpy as np
from matplotlib.figure import Figure
from matplotlib.backends.qt_compat import QtCore, QtWidgets, is_pyqt5, 
     QtGui

if is_pyqt5():
    from matplotlib.backends.backend_qt5agg import (
                                    FigureCanvas, NavigationToolbar2QT 
                                    as  NavigationToolbar)
else:
    from matplotlib.backends.backend_qt4agg import (
                                    FigureCanvas, NavigationToolbar2QT 
                                    as NavigationToolbar)

...