dictionary_match(score_dict[, symmetric]) -> match_fn

Create a match function for use in an alignment. score_dict is a dictionary where the keys are tuples (residue 1, residue 2) and the values are the match scores between those residues. symmetric is a flag that indicates whether the scores are symmetric. If true, then if (res 1, res 2) doesn't exist, I will use the score at (res 2, res 1).

__call__ (
        self,
        charA,
        charB,
        )

__init__ (
        self,
        score_dict,
        symmetric=0,
        )