Python: binascii.a2b_hex gives “Odd-length string”

Question

I have a hex value that I\'m grabbing from a text file, then I\'m passing it to a2b_hex to convert it to the proper binary representation. Here is what I have:

Answer 1

I'm more interested what happens if you execute the following code:

with open("./" + basefile + ".key") as key_file:
   key = key_file.read()
   print len(key), key

Care to tell? There is probably some extra character you just don't see when printing. In these cases, make sure to print the length of the string.