I wrote a pretty fancy GUI for a real-time system (was handled by MPUs externally, so no real-time in GUI). I found it to be fairly easy to use; there are plen

I wrote a pretty fancy GUI for a real-time system (was handled by MPUs externally, so no real-time in GUI). I found it to be fairly easy to use; there are plenty of examples, and often you can mix-and-match from the examples to get what you want. It's also true that as you want fancier interactions, you have to be clever to get the framework to do what you want. It's very good --- best easy-to-use Python GUI I'd say --- but it won't handle every fancy GUI requirement. (That's why you have PyQt etc)