I have been currently trying to get a small piece of code to work, but keep
getting an error:
header_bin = header_hex.decode('hex')
AttributeError: 'str' object has no attribute 'decode'
The source of this code is from:
https://en.bitcoin.it/wiki/Block_hashing_algorithm
Here is the the code:
>>> import hashlib >>> header_hex = ("01000000" +
"81cd02ab7e569e8bcd9317e2fe99f2de44d49ab2b8851ba4a308000000000000" +
"e320b6c2fffc8d750423db8b1eb942ae710e951ed797f7affc8892b0f1fc122b" + "c7f5d74d"
+ "f2b9441a" + "42a14695") >>> header_bin = header_hex.decode('hex') >>> hash =
hashlib.sha256(hashlib.sha256(header_bin).digest()).digest() >>>
hash.encode('hex_codec')
'1dbd981fe6985776b644b173a4d0385ddc1aa2a829688d1e0000000000000000' >>>
hash[::-1].encode('hex_codec')
'00000000000000001e8d6829a8a21adc5d38d0a473b144b6765798e61f98bd1d'
I get the above error when I input this line by line into Win7 IDLE 3.3.3.
Hopefully somebody can point me in the right direction. Thanks.
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