[Tutor] Class Attribute "Overloading?"

[Noufal Ibrahim]

Vincent Gulinao wrote:
> 
> 
> Sorry, I just started experimenting on Python classes...
> 
> Is there any way a reference to a class attribute ([class].[attribute]) 
> be treated like a method ([class].[method]())?
> 
> I have a class with DB component. Some of its attributes are derived 
> from DB and I find it impractical to derive all at once upon __init__.
> 
> Of course we can use dictionary-like syntax ([class]["[attribute]"]) and 
> use __getitem__, checking for existence and None of the attribute before 
> deriving the value from the DB. But I think [class].[attribute] is more 
> conventional (Is it?). Or someone suggest a more Pythonic way.
> 

Do you simply want to dynamically create class attributes? If so, you 
can use setattr. Something like this

class foo(object):
    def __init__(self, *args):
     for i in args:
      setattr(self,i,"Hello=%s"%i)

x=foo("a","b","c")

print x.a,x.b,x.c

will print
Hello=a Hello=b Hello=c


-- 
~noufal