How to do this?

Dan Sommers me at privacy.net
Sat Jul 30 17:38:21 CEST 2005


On Fri, 29 Jul 2005 22:34:23 +0800,
"flyaflya" <flyaflyaa at gmail.com> wrote:

> the codes as  follow:
> class Base:
>     def fun(self):
>         print "base_fun"
>     def fun2(self):
>         print "base_fun2"

> class Foo:
>  def  __init__(self, base):
>   self.__base = base
>  def fun3(self):
>   print  "foo_fun3"

> b = Base()
> foo = Foo(b)

> my aim is:when "foo.fun3()" be called,it run as usually, but when
> "foo.fun()" or "foo.fun2() be called, as Foo hasn't attribute "fun()" and
> "fun2()", foo will call "self.__base.fun()" or "self.__base.fun2()".
> when a attr can't be find in foo, it's will try to search 'self.__base". I
> think this maybe need to use  "__getattr__" and "__setattr__" ,but I cant do
> it successfully. can someone  help  me?

class Foo(Base):
    def fun3(self):
        print "fun_foo3"

HTH,
Dan

-- 
Dan Sommers
<http://www.tombstonezero.net/dan/>



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