[Python-Dev] Re: Update PEP 292
Barry Warsaw
barry at python.org
Mon Aug 23 02:50:32 CEST 2004
On Sun, 2004-08-22 at 20:47, Raymond Hettinger wrote:
> > ... the implementation (patch) I'm going to post
> > will require throw the ValueError for all bad placeholders.
>
> Since you're overriding the mod operator, it may be best to emulate its
> behavior which is to throw a KeyError:
>
> >>> '%(bingo)s' % {'bongo':'xxx'}
>
> Traceback (most recent call last):
> File "<pyshell#1>", line 1, in -toplevel-
> '%(bingo)s' % {'bongo':'xxx'}
> KeyError: 'bingo'
That's a different error, and one that Template still throws, if a
placeholder can't be found in the mapping. The ValueError is thrown
when an invalid placeholder specification is found.
-Barry
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 307 bytes
Desc: This is a digitally signed message part
Url : [Python-Dev] Re: Update PEP 292
Next message: [Python-Dev] Re: Update PEP 292
Messages sorted by:
[ date ]
[ thread ]
[ subject ]
[ author ]
More information about the Python-Dev
mailing list