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Dealing with hex

Dan Bishop danb_83 at yahoo.com
Wed Dec 10 22:29:26 EST 2003 
Derrick 'dman' Hudson <dman at dman13.dyndns.org> wrote in message news:<6clka1-ksi.ln1 at dman13.dyndns.org>...
> On Wed, 10 Dec 2003 03:49:16 GMT, Matt Gerrans wrote:
> > Is there an ideal approach to dealing with the FutureWarning about getting
> > the hex value of a negative int?    I'm using zlib.crc32() which can return
> > a negative 32-bit int value, so for example print '%x' % zlib.crc32(
> > buffer ) generates the FutureWarning.    I know I could jump through hoops
> > to coerce the int into a long that will have the same CRC, but is there some
> > particular recomendation for this (I looked at PEP 237, but there wasn't a
> > suggestion).
> 
> Hoops?  For example :
>     print "%x" % long( zlib.crc32( buffer ) )
> 
> That seems simple enough to me.

Or if you wanted the old semantics:

def unsigned(n):
   return n & 0xFFFFFFFFL

print "%x" % unsigned(zlib.crc32(buffer))
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