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/ -- http://mail.python.org/mailman/listinfo/python-list