Fred L. Drake, Jr. wrote: > On Sunday 30 April 2006 22:50, Edward Loper wrote: > > I see two possible reasons: > > Another use case, observed in the wild: > > - An library function is written to take an arbitrary number of > positional arguments using *args syntax. The library is released, > presumably creating dependencies on the specific signature of the > function. In a subsequent version of the function, the function is > determined to need additional information. The only way to add an > argument is to use a keyword for which there is no positional > equivalent.
This falls under the "first subproposal" from Terry's email: > There are two subproposals: first, keyword-only args after a variable > number of positional args, which requires allowing keyword parameter > specifications after the *args parameter, and second, keyword-only args > after a fixed number number of positional args, implemented with a naked > '*'. To the first, I said "The rationale for this is pretty obvious.". To > the second, I asked, and still ask, "Why?". I was trying to come up with use cases for the "second subproposal." -Edward _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
