Python tuple unpacking within a loop

Python tuple unpacking gets rid of tuple indices and temporary variables.

   >>> a = range(11, 15)
   >>> b = zip(range(21, 25), range(31, 35))
   >>> for x, (y, z) in zip(a, b):
   ...     print x, y, z
   ... 
   11 21 31
   12 22 32
   13 23 33
   14 24 34