Python: Seeing all files in Hex

Question

I am writing a python script which looks at common computer files and examines them for similar bytes, words, double word\'s. Though I need/want to see the files in Hex, ande c

Answer 1

codecs.open(_file, "rb", "hex") is trying to decode the file's contents as being hex, which is why it's failing on you.

Considering your other "word at a time" target (I assume you mean "computer word", i.e. 32 bits?), you'll be better off encapsulating the open file into a class of your own. E.g.:

class HexFile(object):
    def __init__(self, fp, wordsize=4):
        self.fp = fp
        self.ws = wordsize
    def __iter__(self):
        while True:
            data = self.fp.read(self.ws)
            if not data: break
            yield data.encode('hex')

plus whatever other utility methods you'd find helpful, of course.