I have tried bandit only once. There was some simple bug, but it was hard to debug. For some reason my instinct suddenly directed me to this library. What’s funny I read about it only once before and I simply forgot its name, but somehow I have managed to find it on forum. 
Anyway, bandit’s error handling was an amazing help which saved me a lot of energy and time. Been waiting for a stable 1.x release, so I could use it by default. Thanks! 
