Barry Warsaw wrote:
> On Sun, 2006-04-02 at 23:26 -0500, Ian Bicking wrote:
>> Georg Brandl wrote:
>>> BTW, has anyone seen string.Template being used somewhere?
>> I use it from time to time, usually when formatting user-provided
>> strings (because "%(foo)s" is not very pleasant or easy-to-explain
>> compared to "$foo"). However, I *never* use it internally in code,
>> because the overhead of importing string and creating the template far
>> outweighs the inconvenience of %-based substitution. Oh, and I really
>> like %r.
>
> Good point. Yes string.Template was designed primarily for i18n
> applications for the reasons above, and because %(foo)s is more error
> prone than necessary.
>
>> I'd personally be very happy if $"$foo" worked, as well as
>> "$foo".substitute(). $/shell-style substitution is the norm out in the
>> world, not the %/printf style that Python uses; it'd be nice to move
>> towards that norm. string.Template is a bit of a tease that way, since
>> it doesn't actually provide a very convenient alternative to the bulk of
>> what % is used for.
>
> I don't much like the $"" prefix, but I agree that it would be nicer if
> there were more direct support for $-strings. OTOH, I don't see a good
> way to marry the rich coercion of %-substitution with the simplicity of
> $-substition. I wouldn't want to lose that simplicity to gain that
> richness in $-strings, so I suppose a prefix might be necessary.
What do you think of a "format" builtin function that accepts the format as
the first argument (similar to printf).
The version on my harddrive permits positional arguments via $1, $2, etc, as
well as string formatting (by sticking the format code in square brackets
between the $ and the identifier). Keyword arguments still work, naturally.
And if you don't want formatting, you just leave out the square brackets.
Cheers,
Nick.
--
Nick Coghlan | [EMAIL PROTECTED] | Brisbane, Australia
---------------------------------------------------------------
http://www.boredomandlaziness.org
_______________________________________________
Python-3000 mailing list
Python-3000@python.org
http://mail.python.org/mailman/listinfo/python-3000
Unsubscribe:
http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
