On Fri, Jun 21, 2013 at 7:15 PM, Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote: > On Fri, 21 Jun 2013 23:49:51 +0100, MRAB wrote: > >> On 21/06/2013 21:44, Rick Johnson wrote: > [...] >>> Which in Python would be the "MutableArgumentWarning". >>> >>> *school-bell* >>> >> I notice that you've omitted any mention of how you'd know that the >> argument was mutable. > > That's easy. Just call ismutable(arg). The implementation of ismutable is > just an implementation detail, somebody else can work that out. A > language designer of the sheer genius of Rick can hardly be expected to > worry himself about such trivial details.
While we're at it, I would like to petition for a function terminates(f, args) that I can use to determine whether a function will terminate before I actually call it. -- http://mail.python.org/mailman/listinfo/python-list
