Change icon in a Matplotlib figure window

Question

Is it possible to change the icon of a Matplotlibe figure window? My application has a button that opens a Figure window with a graph (created with Matplotlib). I managed to

Answer 1

I found that under OS X with PyQT5, doing plt.get_current_fig_manager().window.setWindowIcon() has no effect. To get the dock icon to change you have to call setWindowIcon() on the QApplication instance, not on the window.

What worked for me is:

QApplication.instance().setWindowIcon(QtGui.QIcon(icon_path))

Do mind that QApplication.instance() will be None until you have actually created a figure, so do that first.