CountingDNANucleotides.py

def countnucleotides(dna):
    a = dna.count('A')
    t = dna.count('T')
    c = dna.count('C')
    g = dna.count('G')

    print(a, " ", c, " ", g, "", t)

countnucleotides('GGCTTCAAGGGGAATCTGTCGTCGCCTCATGAACACGACCCTTTTAAAGGTGGGGTAACCACTCCTCCAACAATCTATGATGGAATGGTTAACGGCGTCGTGAGACGCTGAAGAGTCCGGGTTCGAACTGAGGGAGCCATCGAGTTGGGGTGGGCGTCTCCTTGTCCGAAATATGCCGATTTCCTTGCCAACCAGTCATACTCAATTGCGCCCAAAGTGCCGAACTTGCCCGAAAGAAAGCATACCGAGTTGCGATTAGGAGTGCTTGGCTAGCTTCAGGTTTCGCGAGAGGCACAAAACTCCTTAAGACGTGCGTGGGATGTATCACGGCTTCCTCATAGCATGTTGTCCGCTTGCCTGCTCCCCCTCCAACTATTTGCAGTTCAATCCCTGGTCTGCCTCTGAGCTCTAATTATTGCATAGATTATCACGCCAGAGGGTGTGGTGCGATGCGAAGAGTCCGCATCTCCGAAGAGTAGGCCTTGGCGTCGGCATTACTGTGTCTCGTGTAATCGGGGCTCCGGGATCTGTCTGACCAACTCTCGCAAGTGCCAATTATGATTATAGCACATGTGATACTGGTATTGGCCCAGGCCTAAAGTCAAGGCCTATAGACGTACAGAGATGTGACTAGAAGCCCAAAACCTACGGTTTCCGACGTTGTAGTCGTTATCCACGTAAAAATAATTGAGCTGTCACTCTACAAACCTCACATAATAACCTTTAAAAAACTCGGGAGCAGCTCGCTTATTGTCCCTGCTGCCCGCCCTGCATATCACCGCATGCAGAGGACAGGCATTGCCGAAAACCCGTGATAGGAACGACGGGTTGTGCGTCCACAGCCAGAATGTTGCATATTCCATAATCTATGCTAGGATCTGGGACCTGACAAACTTCTAAGGCATTAGGCTTCTGCCACCACTATCTCTGACAGGGCTAAGTAG')