Try the previous radar example again. This time, go forward a few frames and then zoom in with the zoom tool. Now go back a frame.
Go ahead, I'll wait.
Surprised? Remember that Matplotlib has its own built-in keymap. In the default keymap, the left arrow means to go back to a previous view. When we zoomed in and then pressed the left arrow key, not only did we go back a frame via our callback, but we also went back to the original view prior to zooming via Matplotlib's default keymap. The default keymap is a very important and useful feature for providing basic interactivity for most users. However, when developing your own application using Matplotlib, you might want to disable Matplotlib's keymap entirely. The following example shows how to do that while demonstrating the next important feature of the callback system: disconnecting a callback. In this example, you can now press any non-system key or combination of keys without ever triggering a built...
