On Thu, 10 Mar 2011 16:27:17 -0800, Chris Rebert wrote:
> 3. %-formatting is "obsolete and may go away in future versions of > Python." (See > http://docs.python.org/py3k/library/stdtypes.html#old-string-formatting- operations > ) There is an awful lot of opposition to that. If it ever happens, it probably won't happen until Python4, but even if it happens sooner, you could replace "one:%(one)s two:%(two)s" % \ {"one": "is the loneliest number", "two": "can be as bad as one"} with the format string equivalent, still using literals, and the same constant-folding optimization could occur. "one:{one} two:{two}".format( **{"one": "is the loneliest number", "two": "can be as bad as one"}) Admittedly, it would require a significantly smarter peephole optimizer to recognise this as a constant, which pushes up the complexity for no additional gain, but the principle still applies. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
