FEEDBACK WANTED: Type/class unification
wtanksle at dolphin.openprojects.net
Sun Jul 29 00:24:22 CEST 2001
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. Such an
object, unmodified, would not support introspection.
Can anyone who's used __getattr__ speak up and say whether any
introspection support would be possible or useful?
> 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.
for y in all_possible_strings():
if hasattr(x,y): yield y
-William "Billy" Tanksley
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