At 11:57 AM 10/5/2007 -0300, Rob De Almeida wrote: >Phillip J. Eby wrote: >>I mean that you can't write a WSGI 2.0 application using a single >>generator function, because it has to return a tuple, not an >>iterator. This will discourage people from thinking "yield" is a >>good way to build up their output, instead of using a StringIO or >>''.join() on a list of strings. > >Could you explain why using 'yield' is not recommended? Just >curious, because I use it all the time.
Because you're slowing down your application's throughput. The only reasons to yield multiple strings is when you are either: 1. Sending a file that's larger than you want to load into memory, or 2. You're doing "server push" and need to do some processing between payloads. _______________________________________________ Web-SIG mailing list Web-SIG@python.org Web SIG: http://www.python.org/sigs/web-sig Unsubscribe: http://mail.python.org/mailman/options/web-sig/archive%40mail-archive.com
