Do the users get any say in this?
I'm a user! :-)
I hate calling methods on string literals, I think it looks very odd to have code like this:
"Displaying {0} of {1} revisions".format(x, y)
Will we be able to write this as
"Displaying {0} of {1} revisions" % (x, y)
too?
I imagine that some people are heavily invested in %-formatting.
Because there has been limited uptake on {}-formatting (afaict), we still have limited experience with knowing that it is actually better, less error-prone, easier to learn/rember, etc. Outside a handful of people on this list, I have yet to see anyone adopt it as the preferred syntax.
I've skimmed over the PEP, and the new {}-syntax seems to have some nice features. But I've not seen it used anywhere yet.
<delurk> Rami Chowdhury posted this to a mailing list; I've been using it (perhaps unintentionally promoting it) as part of non-English, non-ASCII font outreach:
def শালাম_বল(নাম): কথা = "শালাম {0}. কেমন আছেন?".format(নাম) print(কথা)
def say_greeting(name): to_say = "Greetings, {0}. How are you?".format(name) print(to_say)
As a user, my assumption was {} was going forward, rain or shine, and everyone should be on board by Python 3.2. (I thought once the Talin PEP got approved, that was it). I wrote Steven Bethard privately about this. Sorry for the intrusion. </delurk>