Partial substitution similar to str % dict
Emile van Sebille
emile at fenx.com
Sun Aug 18 13:26:44 EDT 2002
"Emile van Sebille" <emile at fenx.com> wrote in message
news:ajokq9$po6$1 at main.gmane.org...
> Stefan Schwarzer
> > I would like to do "partial" string substitutions, for example
> >
> > >>> partial_substitute( "%(foo)s-%(bar)s", {'foo': 'abc'} )
> > 'abc-%(bar)s'
[ snip quick-reply non-working answer ;-) ]
Well, almost, but you probably want something that works...
class Partial(dict):
def __getitem__(self, ky):
return self.get(ky, '%%(%s)s' % ky)
print "%(foo)s-%(bar)s" % Partial({'foo': 'abc'})
--
Emile van Sebille
emile at fenx.com
---------
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