On 1 Oct 2009, at 10:37, M.-A. Lemburg wrote:
Eric Smith wrote:
Martin v. Löwis wrote:
Steven Bethard wrote:
There's a lot of code already out there (in the standard library
and
other places) that uses %-style formatting, when in Python 3.0 we
should be encouraging {}-style formatting.
I don't agree that we should do that. I see nothing wrong with using
% substitution.
I agree with Martin.
Both approaches have their ups and downs, but forcing users to move
from %-formatting to .format()-formatting will just frustrate them:
having to convert several thousand such (working) uses in their code
with absolutely no benefit simply doesn't look like a good way to
spend your time.
I agree you cannot force the move to {} format. There are programs that
expose the %(name)s in user interfaces for customisation.
In addition to the code changes, such a move would also render
existing translations of the %-formatted string templates useless.
Speaking of translation support has xgettext been updated to support {}?
It is a life saver to have xgettext report that "This %s and %s" is not
translatable.
Barry
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