Python Challenge 10 Python Challenge 10 Jan 28, 2013 Python Challenge 9 Jan 27, 2013 Python Challenge 8 Jan 14, 2013 Python Challenge 7 Jan 13, 2013 Python Challenge 6 Jan 10, 2013 Python Challenge 5 Jan 10, 2013 Python Challenge 4 Jan 10, 2013 Python Challenge 3 Jan 10, 2013 Python Challenge 2 Jan 9, 2013 Python Challenge 1 Jan 9, 2013