"Raymond Hettinger" <python@rcn.com> writes:
[Steven Bethard]
. Just saying "ok, switch your format strings from % to {}" didn't work in Python 3.0 for various good reasons, and I can't imagine it will work in Python 4.0 unless we have a transition plan.
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. -- Martin Geisler VIFF (Virtual Ideal Functionality Framework) brings easy and efficient SMPC (Secure Multiparty Computation) to Python. See: http://viff.dk/.