lambda generator - curious behavior in 2.5

[James Stroud]

Boris Borcic wrote:
>  >>> x = (lambda : ((yield 666),(yield 777),(yield 888)))()
>  >>> x.next()
> 666
>  >>> x.next()
> 777
>  >>> x.next()
> 888
>  >>> x.next()
> (None, None, None)
>  >>> x = (lambda : ((yield 666),(yield 777),(yield 888)) and None)()
>  >>> x.next()
> 666
>  >>> x.next()
> 777
>  >>> x.next()
> 888
>  >>> x.next()
> 
> Traceback (most recent call last):
>   File "<pyshell#29>", line 1, in <module>
>     x.next()
> StopIteration
>  >>>

Seems like a bug:

py> def doit():
   ((yield 1), (yield 2), (yield 3))
...
py> x = doit()
py> x.next()
1
py> x.next()
2
py> x.next()
3
py> x.next()
------------------------------------------------------------
Traceback (most recent call last):
   File "<ipython console>", line 1, in <module>
<type 'exceptions.StopIteration'>

James