__dict__ is neato torpedo!

[Steven D'Aprano]

On Sat, 11 Jun 2011 21:28:40 -0500, Andrew Berg wrote:

> On 2011.06.11 09:13 PM, Steven D'Aprano wrote:

>> A second, more subtle risk: not all objects have a __dict__. But if you
>> obey the rule about never updating from arbitrary objects you don't
>> know, then you won't be surprised by an object with no __dict__.
>
> What objects don't (other than the obvious ones like strings,
> dictionaries, ints and lists)?

namedtuple is another common example. 

In pure Python, objects created using __slots__ usually don't have a 
__dict__. Quite possibly C extension objects. There may be others.



-- 
Steven