Decode Base64 string to byte array
You can use bytearray for exactly this. Possibly the binascii module and struct can be helpful, too.
import binasciiimport structbinstr=b"thisisunreadablebytes"encoded=binascii.b2a_base64(binstr)print encodedprint binascii.a2b_base64(encoded)ba=bytearray(binstr)print list(ba)print binascii.b2a_hex(binstr)print struct.unpack("21B",binstr)