__dict__ attribute for built-in types

[candide]

Le 28/10/2011 10:01, Steven D'Aprano a écrit :

> didn't think of it. This is hardly a surprise. Wanting to add arbitrary
> attributes to built-ins is not exactly an everyday occurrence.
>



Depends. Experimented programmers don't even think of it. But less 
advanced programmers can consider of it. It's is not uncommun to use a 
Python class like a C  structure, for instance :

class C:pass

C.member1=foo
C.member2=bar


Why not with a built-in type instead of a custom class?




> the natural logarithm of a googol (10**100). But it's a safe bet that
> nothing so arbitrary will happen.

betting when programming ?  How curious! ;)


> Also, keep in mind the difference between a *class* __dict__ and an
> *instance* __dict__.
>

You mean this distinction

 >>> hasattr('', '__dict__')
False
 >>> hasattr(''.__class__, '__dict__')
True
 >>>


?