At 04:18 PM 4/18/2006 -0400, A.M. Kuchling wrote: >On Tue, Apr 18, 2006 at 08:55:18PM +0200, phillip.eby wrote: > > Modified: > > peps/trunk/pep-0343.txt > > > > + "context manager" then encompasses all objects with a __context__() > > + method that returns a context object. (This means that all contexts > > + are context managers, but not all context managers are contexts). > >This change reminds of another question I had about the parenthetical >statement: all contexts are context managers (= 'has a __context__' >method). Why? The context object isn't necessarily available to the >Python programmer, so they can't write: > >with context_mgr as context: > with context: # uses the same context > ... > >Why do contexts need to have a __context__() method?
I was going to say, "so they can be context managers", but I suppose you have a point. There is no need for a context to have a __context__ method, unless it is also a context manager. Ugh. _______________________________________________ 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