One feature of Python 3 that I found really pleasantly useful recently (thank you SO :) ) was passing generators to the zip() function in a for loop, like:

for a, b in zip(generatorA(), generatorB()):

In Python 2 you have to import itertools to do this. I bring this up because I find examples like this all the time in Python 3 where core, modern language features like generators are more tightly integrated and easier to use. It's really a better version of the language and if you're starting fresh on a Python project you should do yourself a favor and use it.