FEEDBACK WANTED: Type/class unification

[Paul Prescod]

William Tanksley wrote:
> 
> On Sat, 28 Jul 2001 13:07:32 -0700, Paul Prescod wrote:
> >2. If I have an object that hides its attributes behind an __getattr__,
> >is there any way to tweak the list returned by the API described above?
> 
> Not without the object's cooperation -- it's not even theoretically
> possible to figure out what attributes __getattr__ might support.  

I am asking whether there is a way for the object to cooperate.

>...
> >def attrs(x):
> >       return [y for y in all_possible_strings if hasattr(x, y)]
> 
> Yes, that would work, for certain values of "work".  all_possible_strings
> is a pretty simple generator.  So is attrs(), actually.
> 
> def attrs(x):
>   for y in all_possible_strings():
>     if hasattr(x,y): yield y
> 
> Amusing.

I wasn't being theoretical. I was asking whether there is a function,
method or parameter with those semantics (and obviously a more sane
implementation).

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