Iteratoration question

[Rhodri James]

On Thu, 02 Apr 2009 23:37:16 +0100, grocery_stocker <cdalten at gmail.com>  
wrote:

>
>>
>> in summary: iterator is bound to one instance of "it", while some_func()
>> returns a new instance each time it is called.
>>
>> BUT
>>
>> while what you are doing is interesting, it is not the same as Python's
>> iterators, which use "yield" from a function and don't require storing a
>> value in a class.  look for "yield" in the python docs.  this comment  
>> may
>> be irrelevant; i am just worried you are confusing the above (which  
>> apart
>> from the mistake about instances is perfectly ok) and python's iterators
>> (which use next(), yield, etc).
>>
>
> Okay, one last question for now
>
[snip]
>
> How comes I can;t go over 'value' like in the following
>
>>>> for x in value:
> ...     print x
> ...
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
> TypeError: iteration over non-sequence

I refer you back to Andrew's answer.  Your "value" object isn't an
iterator and doesn't obey the Iteration protocol.  Expecting to be
able to iterate over it is a tad optimistic.

-- 
Rhodri James *-* Wildebeeste Herder to the Masses