在 2016年3月3日星期四 UTC+8下午8:14:29，Oscar Benjamin写道：
> On 3 March 2016 at 11:52, 刘琦帆 wrote:
> >
> > "A yield statement is not allowed in the try clause of a try/finally
> > construct. The difficulty is that there's no guarantee the generator will
> > ever be
I have just saw PEP 255, and it says that
"A yield statement is not allowed in the try clause of a try/finally construct.
The difficulty is that there's no guarantee the generator will ever be
resumed, hence no guarantee that the finally block will ever get executed;
that's too much a violati
