Pretty print for standard python shell

import pprint
import sys
sys.displayhook = pprint.pprint

Urwid - Console User Interface Library

http://excess.org/urwid/

Online Python Tutor, IDE & Debugging Tool

http://people.csail.mit.edu/pgbovine/python/ - learn Python by writing code and visualizing execution
ideone.com - online
repl.it - online, with source code