def decodebytes ( input ) : py_version = sys . version_info [ 0 ] if py_version >= 3 : return _decodebytes_py3 ( input ) return _decodebytes_py2 ( input )
python3 how to get the decode
Decode base64 string to byte array .
def decodebytes(input):
    """Decode base64 string to byte array."""
    py_version = sys.version_info[0]
    if py_version >= 3:
        return _decodebytes_py3(input)
    return _decodebytes_py2(input)