If you consider yourself a good programmer, read the official reference documentation. A good book was Essential Reference by Beazley but I don't think it was

If you consider yourself a good programmer, read the official reference documentation. A good book was Essential Reference by Beazley but I don't think it was updated for Python3 yet. [edit: http://www.dabeaz.com/python-distilled/ http://www.dabeaz.com/python-distilled/ is the Python3 version] Also perhaps Python Cookbook. A major part of any language is knowing the standard library(-ies).