@stable(as_of='0.4.0')
    def lowercase(self, lowercase):
        index = self._munge_to_index_array(lowercase)
        outbytes = self._bytes.copy()
        outbytes[index] ^= self._ascii_invert_case_bit_offset
        return str(outbytes.tostring().decode('ascii'))
Return a case-sensitive string representation of the sequence.
dataset/ETHPy150Open biocore/scikit-bio/skbio/sequence/_sequence.py/Sequence.lowercase