# adapted from# https://matplotlib.org/stable/gallery/user_interfaces/embedding_in_tk_sgskip.htmlimporttkinterfrommatplotlib.backends.backend_tkaggimport (FigureCanvasTkAgg,NavigationToolbar2Tk)# Implement the default Matplotlib key bindings.frommatplotlib.backend_basesimportkey_press_handlerfrommatplotlib.figureimportFigurefrommatplotlibimport__version__importnumpyasnpprint("matplotlib",__version__)root=tkinter.Tk()root.wm_title("Embedding in Tk")fig=Figure(figsize=(5,4),dpi=100)t=np.arange(0,3,.01)fig.add_subplot().plot(t,2*np.sin(2*np.pi*t))canvas=FigureCanvasTkAgg(fig,master=root)# A tk.DrawingArea.canvas.draw()# pack_toolbar=False will make it easier to use a layout manager later on.toolbar=NavigationToolbar2Tk(canvas,root,pack_toolbar=False)toolbar.update()##### Change !!!# second figuresecond_fig=Figure(figsize=(5,4),dpi=100)t=np.arange(0,4,.01)second_fig.add_subplot().plot(t,2*np.sin(2*np.pi*t))canvas.figure=second_figtoolbar.update()canvas.draw()##### !!!canvas.mpl_connect("key_press_event",lambdaevent:print(f"you pressed{event.key}"))canvas.mpl_connect("key_press_event",key_press_handler)button=tkinter.Button(master=root,text="Quit",command=root.quit)# Packing order is important. Widgets are processed sequentially and if there# is no space left, because the window is too small, they are not displayed.# The canvas is rather flexible in its size, so we pack it last which makes# sure the UI controls are displayed as long as possible.button.pack(side=tkinter.BOTTOM)toolbar.pack(side=tkinter.BOTTOM,fill=tkinter.X)canvas.get_tk_widget().pack(side=tkinter.TOP,fill=tkinter.BOTH,expand=1)tkinter.mainloop()