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

Antoine Pitrou solipsis at pitrou.net
Thu Oct 1 02:47:09 CEST 2009

Vinay Sajip <vinay_sajip <at> yahoo.co.uk> writes:
> Does it seems too onerous to expect people to pass an additional "use_format"
> keyword argument with every logging call to indicate how to interpret the
> message format string? Or does the PercentMessage/BraceMessage type approach
> have any mileage? What do y'all think?

What about the proposal I made earlier?
(support for giving a callable, so that you pass the "{foobar}".format method
when you want new-style formatting)

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