[Python-Dev] str.format_from_mapping (original) (raw)

Benjamin Peterson benjamin at python.org
Sun Oct 31 22:02:08 CET 2010


2010/10/31 Antoine Pitrou <solipsis at pitrou.net>:

On Sun, 31 Oct 2010 16:39:44 -0400 Eric Smith <eric at trueblade.com> wrote:

What are your thoughts on adding a str.formatfrommapping (or similar name, maybe the suggested "formatmap") to 3.2? See http://bugs.python.org/issue6081 . This method would be similar to "%(foo)s %(bar)s" % d, where d is a dict (or rather any mapping object), but of course would use str.format syntax: "{foo} {bar}".formatfrommapping(d). I must be missing something, but what's the difference with XXX.format(**d)?

It allows arbitrary mappings.

-- Regards, Benjamin



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