hashvalues = self._parse_hashvalues(hashvalues)
            num_perm = len(hashvalues)
        if num_perm > _hash_range:
            # Because 1) we don't want the size to be too large, and
            # 2) we are using 4 bytes to store the size value
            raise ValueError(
                "Cannot have more than %d number of\
                    permutation functions"
                % _hash_range
            )
        self.seed = seed
        self.num_perm = num_perm
        # Check the hash function.
        if not callable(hashfunc):
            raise ValueError("The hashfunc must be a callable.")
        self.hashfunc = hashfunc
        # Check for use of hashobj and issue warning.
        if hashobj is not None:
            warnings.warn("hashobj is deprecated, use hashfunc instead.", DeprecationWarning, stacklevel=2)
        # Initialize hash values
        if hashvalues is not None:
            self.hashvalues = self._parse_hashvalues(hashvalues)