# Remove the item at the given position in the list, and return it. If no index is
# specified, a.pop() removes and returns the last item in the list. The item is
# also removed from the list. (The square brackets around the i in the method
# signature denote that the parameter is optional, not that you should type square
# brackets at that position. You will see this notation frequently in the Python
# Library Reference.)
a = [66.25, 333, 333, 1, 1234.5]
print a.pop(1)
print a