This is straightforward.

__result = []; __i = None
try:
    for __i in range(2, 5):
        __result2 = []; __x = __y = None
        try:
            for __x in range(2):
                for __y in range(1, __i):
                    __result2.append(__x + __y)
            __result.append(__result2)
        finally:
            del __result2, __x, __y
finally:
    del __i