evalstr

[Steve Holden]

"Joonas Paalasmaa" <joonas.paalasmaa at nokia.com> wrote in message
news:3B4C2A0E.60AA094 at nokia.com...
> Shannon --jj Behrens wrote:
> >
> > Hello All,
> >
> > I wrote a useful C module for doing string
> > interpolation.  I find it indespensible when working
> > with large blocks of triple-quoted text.  When working
> > with large blocks of triple-quoted text, nothing else
> > is quite as convenient.  Here's the Python doc:
>
> [lots of text snipped]
>
> > Please forgive my arrogance, but I think that it might
> > even be useful enough to be included as a standard
> > module.  If, not perhaps you guys might have some
> > suggestions as to what I can do with it.  You may
> > download the entire packages from:
> >
> > <http://ironorchid.com/jjinux/evalstr.tar.gz>
>
> I prefer the following method for evaluations inside strings.
>
> >>> class Eval:
> def __getitem__(self, key):
> return eval(key)
>
>
> >>> foo = 3.0
> >>> spam = 5.0
> >>> print "%(foo/spam)s" % Eval()
> 0.6
> >>> print "%(foo/spam).55f" % Eval()
> 0.5999999999999999800000000000000000000000000000000000000

That's a very neat trick. Had you though of writing it up as a Python
recipe?

regards
 Steve
--
http://www.holdenweb.com/