Python：创建一个Class，哪个属性是来自另一个类的对象？

Question

是否可以创建一个具有某些属性=其他类的对象的类？

类传感器：

def __init__(self):
    # The attributes of the class that will be available for external use
    self.temperature = None
    self.humidity = None
    self.distance = None
    self.light = None
    self.sound = None
    self.url = None
    self.base_url = "http://..."

    # Instantiating sensor objects
    self.SOUND = NEW OBJECT FROM CLASS SOUND
    self.LIGHT = NEW OBJECT FROM CLASS LIGHT
    self.DISTANCE = NEW OBJECT FROM CLASS DISTANCE
    self.TEMP = NEW OBJECT FROM CLASS TEMPERATURE

Answer 1

你试过吗？

>>> class A(object):
...   pass
...
>>> class B(object):
...   a = A()
...
>>> b = B()
>>> b.a
<__main__.A object at 0x021490B0>