Decorating instance methods

[Alexander Draeger]

Hello everybody,

I'm very interesting in using the decorator concept, but I can't
convert it in useful things. I have read many about decorators and
have seen a lot of examples, but I search a possibility, to decorate
methods of classes with reference to the instances. For example:

I have a class A:

class A(object):
    def __init__(self, name):
        self.name=name

    @logging
    def hello(self, name):
        print 'Hello World.'



 >>>a=A('Ernie')
 >>>b=A('Bert')
 >>>a.hello()
Entering a method. [Ernie]
Hello World.

 >>>b.hello()
Entering a method. [Bert]
Hello World.


How should I implement the function logging, when I want to use the
variable self.name for the logging message?





Alex