I need to create many instances of a class D that inherits from a class B. Since the constructor of B is expensive I'd like to execute it only if it's really unavoidable. Below is an example and two workarounds, but I feel they are not really good solutions. Does somebody have any ideas how to inherit the data attributes and the methods of a class without calling it's constructor over and over again?
- rename B to A - class B (A) - move the costly constructor from A to B - class D (A)
You can now move some parts from B.__init__ to A.__init__ if they are really needed by D as well.
In OO speak: D is not really a subclass of B. Refactor the common code into a new class A.
Daniel -- http://mail.python.org/mailman/listinfo/python-list
