Nathan West added the comment: Doesn't the same issue exist for all other uses of the idiom, though? Python provides container "truthiness" even though `len(x) == 0` is more "correct."
On Fri, Jun 5, 2015, 3:20 PM Yury Selivanov <rep...@bugs.python.org> wrote: > > Yury Selivanov added the comment: > > Nathan, consider the following signature: > > def foo(a=0:''): pass > > now, sig.parameters['a'].annotation will be '' and .default will be 0, and > they will fail 'if param.annotation or param.default' check. That's why we > encourage checks like 'if param.annotation is not param.empty'. > > Closing this issue. > > ---------- > assignee: -> yselivanov > nosy: +yselivanov > resolution: -> rejected > status: open -> closed > > _______________________________________ > Python tracker <rep...@bugs.python.org> > <http://bugs.python.org/issue23653> > _______________________________________ > ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23653> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
