相关疑难解决方法(0)

我试图弄清楚如何在使用的子类上使用装饰器super().由于我的类装饰器创建了另一个子类,因此装饰类似乎可以防止在super()更改className传递给它时使用super(className, self).以下是一个例子:

def class_decorator(cls):
    class _DecoratedClass(cls):
        def __init__(self):
            return super(_DecoratedClass, self).__init__()
    return _DecoratedClass

class BaseClass(object):
    def __init__(self):
        print "class: %s" % self.__class__.__name__
    def print_class(self):
        print "class: %s" % self.__class__.__name__

bc = BaseClass().print_class()

class SubClass(BaseClass):
    def print_class(self):
        super(SubClass, self).print_class()

sc = SubClass().print_class()

@class_decorator
class SubClassAgain(BaseClass):
    def print_class(self):
        super(SubClassAgain, self).print_class()

sca = SubClassAgain()
# sca.print_class() # Uncomment for maximum recursion

输出应该是:

class: BaseClass
class: BaseClass
class: SubClass
class: SubClass
class: _DecoratedClass
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