class callable with any method name

[Imer]

Hi, I'm trying to find a way to implement a class that would allow any
method name to be called.
When that happens, a special method would be called and the name of
the method that was originally called would be passed as an argument.

For instance:
########
class A:
  def __method_called__ (self, method_name, method_argument):
    print "The method", method_name, "was called with the argument",
method_argument
########

Then the following code:
########
a=A()
a.this_is_a_random_method(arg=1)
a.yet_another_random_method(param=3)
########

Would print out:
########
The method this_is_a_random_method was called with the argument
{'arg':1}
The method yet_another_random_method was called with the argument
{'param':3}
########

Is there a way to do that ?

Thanks.

Mathieu.