Class design: accessing "private" members

[Frédéric van der Plancke]

In article <8jplbd0l5c at news2.newsguy.com>,
  "Alex Martelli" <alex at magenta.com> wrote:

> Such "prohibition" is not hard at all:
>
> class dontderive:
>     def __init__(self):
>         if self.__class__ != dontderive:
>             raise "told you not to!"
>
> class foo(dontderive):
>     pass
>

#but...

class bypassing_prohibition(dontderive):
   def __init__(self):
       pass

eh = bypassing_prohibition()

#this works because __init__ never automatically calls the __init__
#method of base classes...

--
Frederic van der Plancke
e-mail address: reverse and add dot-at-dot to:
      <com writeme vdplancke frederic>
(I don't read <fplancke at my-deja.com> regularly.)


Sent via Deja.com http://www.deja.com/
Before you buy.