Simultaneous .replace functionality

Question

I have already converted user input of DNA code (A,T,G,C) into RNA code(A,U,G,C). This was fairly easy

RNA_Code=DNA_Code.replace(\'         


        

Answer 1

You can use a mapping dictionary:

In [1]: dic={"A":"U","U":"A","G":"C","C":"G"}

In [2]: strs="AUUUGCGGCAAA"

In [3]: "".join(dic[x] for x in strs)
Out[3]: 'UAAACGCCGUUU'