Am Fri, 17 Dec 2004 02:17:38 -0600 schrieb Robert Dick:
> Derived classes sometimes need to delegate portions of the work in overridden
> methods to methods in their base classes. This was traditionally done with
> explicit calls in python, e.g.,
>
> class Base:
> def __init__(self):
> print 'base'
>
> class Left(Base):
> def __init__(self, arg):
> Base.__init__(self)
> print 'left'
>
> class Right(Base):
> def __init__(self, arg):
> Base.__init__(self)
> print 'right'
If you can change the source of Base, I would do it like
this:
class Base:
_init_done=0
def __init__(self):
if self._init_done:
return
self._init_done=1
# ... do init
Thomas
--
Thomas Güttler, http://www.thomas-guettler.de/
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