def mangle(self, name, x):
        """
        Mangle the name by hashing the I{name} and appending I{x}.
        @return: the mangled name.
        """
        h = hashlib.md5(name.encode('utf8')).hexdigest()
        return '%s-%s' % (h, x)
Mangle the name by hashing the I{name} and appending I{x}.
        @return: the mangled name.