On Sat, 08 Oct 2011 17:14:55 +0200 Victor Stinner <victor.stin...@haypocalc.com> wrote:
> Le 08/10/2011 15:03, Antoine Pitrou a écrit : > > On Fri, 07 Oct 2011 21:14:44 -0600 > > Jeffrey<jss.b...@gmail.com> wrote: > >> I would like to suggest adding an integer presentation type for base 36 > >> to PEP 3101. I can't imagine that it would be a whole lot more > >> difficult than the existing types. Python's built-in long integers > >> provide a nice way to prototype and demonstrate cryptographic > >> operations, especially with asymmetric cryptography. (Alice and Bob > >> stuff.) Built-in functions provide modular reduction, modular > >> exponentiation, and lots of nice number theory stuff that supports a > >> variety of protocols and algorithms. A frequent need is to represent a > >> message by a number. Base 36 provides a way to represent all 26 letters > >> in a semi-standard way, and simple string transformations can > >> efficiently make zeros into spaces or vice versa. > > > > Why base 36 rather than, say, base 64 or even base 80? > > Base 85 is the most efficient base to format IPv6 addresses! > > http://tools.ietf.org/html/rfc1924 Indeed, I meant base 85. There's a specification that doesn't rely on long integer division: http://en.wikipedia.org/wiki/Ascii85 Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
