Drat, the only one I don't know is [0:10:2]. I guess it's back to The Python Tutorial for me. http://docs.python.org/tutorial/

Followup: The tutorial didn't seem to mention what [x:y:z] does, so I checked:

  >>> range(15)
  [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]

  >>> range(15)[0:10]
  [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

  >>> range(15)[0:10:2]
  [0, 2, 4, 6, 8]

  >>> range(15)[0:10:3]
  [0, 3, 6, 9]

So the third argument is the number of elements to skip (minus one) between each item in the new sequence. Neat.