On 12 Jan 2007 06:17:01 -0800, [EMAIL PROTECTED] wrote: >I'm happily using context managers and co-routines, and would like to >use both at the same time, e.g.
Python has generators, not co-routines. > > with foo(): > ... > x = yield y > ... > >In this code multiple copies of this code can be executing at the >"same" time, interleaved by the yield statement. This doesn't work >well, since the context manager is dealing with global state >(specifically, re-routing stdout). > >The problem is that all of my state (local variables, etc.) is nicely >saved over the yield, but the context is not. So I end up having to >write the code like this: > > with foo(): > ... > x = yield y > with foo(): > ... > >which is not so pretty. What I'd like is some way to transparently save >and restore context over a yield, but I don't see an easy way to do >this. Wrap the generator in a function which co-operates with your context managers to clean-up or re-instate whatever they are interacting with whenever execution leaves or re-enters the generator. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
