Takes in a string of codons and converts them into anticodons

codons_to_anticodons.py

i = 'AUG|UUU|GUA|CAU|UUG|UGU|GGG|AGU|CAC|CUG|GUU|GAG|GCG|UUG|UAU|UUG|GUU|UGU|GGC|GAG|CCC|GGC|UUU|UAC|CAG|UUA|GAG|AAU|UAC|UGA'
x = ''
convert = {
    'A' : 'U',
    'G' : 'C'
}

for letter in i:
    y += i
    if letter == "|":
        x += "|"
    else:
        for key, value in convert.items():
            if letter == key:
                x += value
            elif letter == value:
                x += key

print(x)