2009/3/21 Greg Ewing <greg.ew...@canterbury.ac.nz>: > P.J. Eby wrote: > >> My concern is that allowing 'return value' in generators is going to be >> confusing, since it effectively causes the return value to "disappear" if >> you're not using it in this special way with some framework that takes >> advantage. > > But part of all this is that you *don't* need a special > framework to get the return value -- all you need is a > caller that uses a yield-from statement. There are uses > for that besides threading systems.
Can they be added to the PEP? Personally, I find the proposal appealing, and I don't find the semantics hard to understand (although certainly the expansion given in the "formal semantics" section makes my head hurt ;-)) but I don't see many actual reasons why it's useful. (My own use would most likely to be the trivial "for v in g: yield v" case). More motivating examples would help a lot. Paul. _______________________________________________ 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
