python-iterables-vs-iterators-vs-generators_3.py

>>> import dis
>>> x = [1, 2, 3]
>>> dis.dis('for _ in x: pass')
  1           0 SETUP_LOOP              14 (to 17)
              3 LOAD_NAME                0 (x)
              6 GET_ITER
        >>    7 FOR_ITER                 6 (to 16)
             10 STORE_NAME               1 (_)
             13 JUMP_ABSOLUTE            7
        >>   16 POP_BLOCK
        >>   17 LOAD_CONST               0 (None)
             20 RETURN_VALUE