引数の箇所で for がつかえるか確認した

gistfile1.py

~ %python3 
Python 3.4.0 (v3.4.0:04f714765c13, Mar 15 2014, 23:02:41) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> def func(a): return a
... 
>>> b = func((q, w) for q in range(1, 4) for w in range(3, 0, -1))
>>> for c in b: print(c)
... 
(1, 3)
(1, 2)
(1, 1)
(2, 3)
(2, 2)
(2, 1)
(3, 3)
(3, 2)
(3, 1)