Larry Bates wrote: > I'm trying to get the results of binascii.crc32 > to match the results of another utility that produces > 32 bit unsigned CRCs.
What other utility? As Tim says, there are many CRC32s... the background notes on this one happen to stumble out at the top of the list in response to googling for "zip file crc32 checksum polynomial", though I'm sure there are easier ways. The binascii docs say its CRC32 is compatible with the Zip file checksum, but they don't describe it further. Generally CRCs are described in terms of their "polynomial", though just quoting that isn't sufficient to describe their behaviour, but if you happen to know the polynomial for your utility, someone else can probably point you to a more appropriate routine, or perhaps explain what you were doing wrong if the binascii one is actually the right one.. -Peter -- http://mail.python.org/mailman/listinfo/python-list
