Traceback (most recent call last):
  File "blockchain.py", line 49, in <module>
    output = generate_output(query_result)
  File "blockchain.py", line 36, in generate_output
    output = decode_datalist([info])
  File "/usr/local/lib/python2.7/dist-packages/serpent.py", line 118, in decode_datalist
    arr = ''.join(map(chr, arr))
ValueError: chr() arg not in range(256)