[Python-Dev] Re: Update PEP 292

[Barry Warsaw]

On Wed, 2004-08-11 at 08:21, Andrew Durdin wrote:

> Forgive me for being obtuse, but I can't see anything significantly
> simpler in this PEP than the standard string interpolation, except for
> the case where the identifier doesn't need braces:
> 
> template("Hello, $name, how are you?") % {name: "Jim"}
> versus
> "Hello, %(name)s, how are you?") % {name: "Jim"}
> 
> Apart from removing the need for the parentheses/braces in this case,
> all it does is consistently remove the "s", and replace the % with $,
> and then limiting the interpolated values to strings (or will it
> automatically use str(x) for any non-string variable x?).
> Is there any other benefit to this that I'm overlooking?

The elimination of the trailing 's' is definitely a benefit, as is the
adoption of $-placeholders, since that tends to be the placeholder
introducing character in many other languages.  In terms of usability,
it's a win.

-Barry

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