import sys, base64 if len(sys.argv) < 3: print """Usage: %s in_b64_enc_file out_dec_file in_b64_enc_file - The Base64 encoded file to be converted out_dec_file - The output decoded file """%sys.argv[0] sys.exit(0) base64.decode(open(sys.argv[1], 'rb'), open(sys.argv[2], 'wb'))