a_for_by_another_name.py

  for item in collection:
    do_stuff(item)

  #becomes:

  iterator = iter(collection)
  while True:
    try:
      item = iterator.next()
      # The code from the for indent block goes here. (No lambdas :/)
      do_stuff(item)
    except StopIteration:
      # The code from the else clause goes here.
      break


  # Don't trust me try this:
  collection = iter([1, 2, 3, 4, 5]) # Python lists are iterable, but not
                                     # iterators
  while True:
    try:
      item = collection.next()
      print "{0} bottles of beer on the wall".format(item)
    except StopIteration:
      break