Inverse sequence

Get the reverse complement of a DNA sequence

from Bio.Seq import Seq

from Bio.Alphabet import generic_dna

my_dna = Seq('TGCAA', generic_dna)

my_dna

Seq('TGCAA', DNAAlphabet())

my_dna.complement()

Seq('ACGTT', DNAAlphabet())

my_dna.reverse_complement()

Seq('TTGCA', DNAAlphabet())

my_dna[::-1] # reverse only

Seq('AACGT', DNAAlphabet())

http://biopython.org/wiki/Seq#Complement_and_reverse_complement