If your Python 2 code is clean and your Python 3 is ugly, I don't know what the hell you are doing. They are almost the same language. Are you trolling?
Probably the Python 3 code was rushed and/or written by an inexperienced programmer. That would just be a coincidence, nothing to do with Python 2 or 3.
The narcissism of small differences: it makes us notice differences (and dislike the differences) between things that are mostly identical to outside observers.
