ln 221: if snp_taxID not in samples_of_interest.keys():#Check if Genome is of interest Tracing through, looks like samples_of_interest is a dict. `snp_tax

ln 221: if snp_taxID not in samples_of_interest.keys():#Check if Genome is of interest Tracing through, looks like samples_of_interest is a dict. `snp_taxID not in samples_of_interest` would make membership check constant time.