I might be way off with this advice but perhaps consider using Google more. If something doesn't work as expected, say, in Python 3, just search for the error message in a 'normalized' form (i.e. without specific variable names etc.) and add a "python 3". Chances are someone has written up a solution for the problem on stackoverflow.com or other forums. Don't hesitate to blatantly adapt code from somewhere else. Everybody does it and it speeds up your work. Don't listen to those complaining that this would prevent a deeper understanding of the code, usually it doesn't.
