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

[Antoine Pitrou]

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)