Python: Add a manager to a matplotlib FigureCanvasBase object

add_manager.py

def add_manager(fig):
    """
    Adds a manager to a FigureCanvasBase instance to enable show method
    
    Example:
        >>> from matplotlib.figure import Figure
        >>> fig = Figure(figsize=(10, 10))
        >>> ax = fig.add_subplot(1, 1, 1)
        >>> ax.set_title("Example axis")
        >>> add_manager(fig)
        >>> fig.show()
    """
    empty_fig = plt.figure()
    manager = empty_fig.canvas.manager
    manager.canvas.figure = fig
    fig.set_canvas(manager.canvas)