decorator1.py

class Klass(object):

    def __init__(self):
        self.name = 'tanaka'

    def decorator(original_func):
        def func(*args):
            return original_func() + self.name
        return func

    @decorator
    def decorated_func():
        return [1, 2]

# => NameError: global name 'self' is not defined
# self.name は参照できない。

class Klass(object):

    def __init__(self):
        self.name = 'tanaka'

    def decorator(original_func):
        def func(*args):
            return original_func() + [args[0].name]
        return func

    @decorator
    def decorated_func():
        return [1, 2]

# => [1, 2, 'tanaka']