ROSALIND - Inferring mRNA from Protein

Answer to https://rosalind.info/problems/mrna/

 def GetMRna(AA):  
   l_aa = {key for key, value in aa_map.items() if value == AA}  
   return l_aa  
 input_file = open("rosalind_mrna.txt", "r")  
 aa_seq = input_file.read().replace("\n", "")  
 print(aa_seq)  
 aa_map = {  
   "UUU":"F", "UCU":"S", "UAU":"Y", "UGU":"C",   
 "UUC":"F", "UCC":"S", "UAC":"Y", "UGC":"C",   
 "UUA":"L", "UCA":"S", "UAA":"STOP", "UGA":"STOP",   
 "UUG":"L", "UCG":"S", "UAG":"STOP", "UGG":"W",   
 "CUU":"L", "CCU":"P", "CAU":"H", "CGU":"R",   
 "CUC":"L", "CCC":"P", "CAC":"H", "CGC":"R",   
 "CUA":"L", "CCA":"P", "CAA":"Q", "CGA":"R",   
 "CUG":"L", "CCG":"P", "CAG":"Q", "CGG":"R",   
 "AUU":"I", "ACU":"T", "AAU":"N", "AGU":"S",   
 "AUC":"I", "ACC":"T", "AAC":"N", "AGC":"S",   
 "AUA":"I", "ACA":"T", "AAA":"K", "AGA":"R",   
 "AUG":"M", "ACG":"T", "AAG":"K", "AGG":"R",   
 "GUU":"V", "GCU":"A", "GAU":"D", "GGU":"G",   
 "GUC":"V", "GCC":"A", "GAC":"D", "GGC":"G",   
 "GUA":"V", "GCA":"A", "GAA":"E", "GGA":"G",   
 "GUG":"V", "GCG":"A", "GAG":"E", "GGG":"G",   
 }  
 condon_len = []  
 stop_condons_len = 3  
 aa_seq_len = len(aa_seq)  
 for i in range(aa_seq_len):  
   condons = GetMRna(aa_seq[i])  
   condons_len = len(condons)  
   stop_condons_len = stop_condons_len * condons_len  
 print("Answer:" + str(stop_condons_len % 1000000) )