OK, thanks for explanation.

The behaviour is still strange, because when I delete try...except clause
from wrap, the StopIteration exc from emptygen terminates the program with
traceback.

On Tue, Dec 4, 2012 at 9:14 PM, R. David Murray <report@bugs.python.org>wrote:

>
> R. David Murray added the comment:
>
> I don't see the bug here.
>
> Your for loop calls wrap.  Wrap calls emptygen.  Emptygen raises a
> StopIteration exception.  That exception is of course propagated upward (it
> isn't caught by wrap), and the loop stops.
>
> ----------
> nosy: +r.david.murray
> resolution:  -> invalid
> stage:  -> committed/rejected
> status: open -> closed
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue16610>
> _______________________________________
>