Michele Simionato wrote: > I believe decorators are in large part responsible for that. A callable > object does not work > as a method unless you define a custom __get__, so in decorator > programming it is > often easier to use a closure. OTOH closures a not optimal if you want > persistency > (you cannot pickle a closure) so in that case I use a callable object > instead.
Note that it isn't necessary to write the descriptor yourself. The 'new' module takes care of it: In [1]: class A(object): ...: pass In [2]: a = A() In [3]: class Method(object): ...: def __call__(mself, oself): ...: print mself, oself In [4]: import new In [5]: a.method = new.instancemethod(Method(), a, A) In [6]: a.method() <__main__.Method object at 0xb7ab7f6c> <__main__.A object at 0xb7ab79ec> -Mike -- http://mail.python.org/mailman/listinfo/python-list
