Path 1: 7 calls (0.54)

'PyPy' (4) 'CPython, PyPy' (1) 'CPython,PyPy,IronPython' (1) 'PyPy,CPython,IronPython' (1)

1type=lambda s: [i.strip() for i in s.split(",")],
            

Path 2: 4 calls (0.31)

'six' (4)

1type=lambda s: [i.strip() for i in s.split(",")],
            

Path 3: 2 calls (0.15)

'win32' (2)

1type=lambda s: [i.strip() for i in s.split(",")],