[Python-Dev] summary of transitioning from % to {} formatting

[Barry Warsaw]

On Oct 5, 2009, at 4:41 PM, Nick Coghlan wrote:

> Oh, I see what you meant now - you were pointing out that lazy
> formatting APIs (such as logging) already don't work properly for
> alternative formatting mechanisms (such as string.Template).

Yep.

> (Although printing to a String IO doesn't seem necessary - simply
> pre-formatting the message seems like it should work, just as
> preformatting brace formatted messages already works today).

Yep. :)

> The idea of adding an optional "fmt_style" callable to these APIs
> (defaulting to None, which would imply the use of the mod operator) is
> becoming more appealing...

-Barry

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