[c-oreills]

I'd be wary of recommending Django to a beginner, unless their project definitely required it.

Flask is lightweight, simple, and you can understand most of it in a very short period of time. I'd say it taught you to code more, whereas Django teaches you to use Django.

[olifante]

Better yet, use Express and focus on mastering one single language for the client-side and the server-side: either JavaScript or CoffeeScript.