def getMRO(ob, *args, **kwargs):
        if args or kwargs:
            kwargs.pop('extendedClassic',None)
            if 1 > len(args) or kwargs:
                raise TypeError
            import warnings
            warnings.warn(DeprecationWarning(
                """In Python 3 there are no more ols-style classes.
                Therefore, extendedClassic has no meaning and should not be used.
                """
            ))
        if isinstance(ob,type):
            return ob.__mro__
    
        return ob,
dataset/ETHPy150Open enthought/traits/traits/protocols/advice.py/getMRO/swapped operands of `>`