"Hrvoje Niksic" <hniksic at xemacs.org> wrote in message news:87skytbbbc.fsf at mulj.homelinux.net... > The %x conversion specifier is documented in > http://docs.python.org/lib/typesseq-strings.html as "Unsigned > hexadecimal (lowercase)." What does "unsigned" refer to? It's obsolete, a fallout of int/long int unification. See http://www.python.org/dev/peps/pep-0237/