[Guido van Rossum] > > Cons: > > - slightly less simple (__enter__ must return something for VAR; > > __exit__ takes optional args)
[Fredrik Lundh] > what happened to the original "yield the target object" solution? or did > I just dream that? Don't worry, that works when you use a generator. It just doesn't work when you're using a class. The do-statement proposal is a bit ambiguous: on the one hand it's not strongly tied to generators, since you can easily write a class with __enter__ and __exit__ methods; on the other hand its essential difference from PEP 310 is that you *can* use a generator, given a suitable decorator. BTW, we need a name for such a decorated generator that only yields once. I propose to call it a degenerator. -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ 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
