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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _comparator(func):
 """ Decorator for EnumValue rich comparison methods. """

    def comparator_wrapper(self, other):
        try:
            # [PATCH] The code was originally the following:
            #
            #     assert self.enumtype == other.enumtype
            #     result = func(self.index, other.index)
            #
            # which first statement causes an issue when serializing/unserializing object
            # from/to memcached using pylibmc, which built a new instance of the
            # enumeration.  Therefore two items are stated different while semantically
            # the same.
            #
            # These two lines are replaced by the following, which relies on the fact that
            # developers are not likely naming two items of distinct enumerations the same
            # way, and less likely to compare two items of two distinct enumerations.
            #
            # (Daniel CAUNE; daniel.caune@gmail.com; 2012-05-11)
            result = func(self.key, other.key)
        except (AssertionError, AttributeError):
            result = NotImplemented

        return result
    comparator_wrapper.__name__ = func.__name__
    comparator_wrapper.__doc__ = getattr(float, func.__name__).__doc__
    return comparator_wrapper