Error using FigureCanvasQTAgg in MatplotlibWidget pyqt5

Question

I would like to plot on my GUI with pyqt5 using matplotlib. I have created a class called MatplotlibWidget which create the figure and canvas of my plot. But I have a problem to

Answer 1

If using pyqt5, do this:

from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg