I find 3.4 much easier to use, personally. I've written several production apps in it, and the unicode fixes in particular are a much easier, as well as little

I find 3.4 much easier to use, personally. I've written several production apps in it, and the unicode fixes in particular are a much easier, as well as little things like being able to do enums. Ultimately, they really aren't all that different- I think the differences tend to be overblown somewhat on HN. If the course/teacher you like only teaches using 2.7, learn that. You can pick up the changes from 2.7->3.4 on your own pretty easily once you know the basic language.