On Fri, Jul 23, 2010 at 2:44 AM, Guido van Rossum <gu...@python.org> wrote:
..
> Indeed, we meant b'...{}...{}...'.format(x, y). The problem is that it
> can't invoke x.__format__() or y.__format__() since those will return
> text strings instead of bytes. A proposed solution was to try
> x.__bformat__() etc. Another proposed solution was to limit x and y to
> a small set of common types and hard-code their meanings (e.g.
> numbers, bytes, and dates).Reaching an agreement on what to hard-code for dates may be harder than for the other common types. [1] Implementation of date.__bformat__ will also have it's unique challenges because at the moment date.__format__ is date.strftime and there is no locale independent strftime variant. A simple solution would be to have date.__bformat__ or hard-coded meaning to be just b'YYYY-MM-DD', but when it gets to datetime, I am sure users will start complaining about inability to specify RFC 3339 or other internet-standard formats. [1] http://bugs.python.org/issue8913 _______________________________________________ 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
