Comment by gambiting

>>Last but not least, it must be said sometimes you have to go to prints

Well yes, obviously - it's an indespensible tool in any arsenal, I just cannot fathom(as a C++ low level engineer) how someone can be a professional programmer where they are paid for their job and they don't know to use a debugger even to just do a basic pause and step through flow. But then again I don't work with any python programmers, so maybe that's why.