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是否有充分的理由将对象列表存储为“子属性”?在下面的示例中,我在 animals
下的 Zoo 中存储了几个动物对象。属性,例如 zoo.animals.<animal object referenced by name>
.这种语法使访问存储动物的属性变得更加容易,我想知道这种结构是否有我尚未考虑的缺点:
class Animal(object):
def __init__(self, name, num_legs, furry):
self.name = name
self.num_legs = num_legs
self.furry = furry
class ObjAsAttributes(object):
def __init__(self, **kwargs):
for k,v in kwargs.items():
setattr(self, k, v)
class Zoo(object):
def __init__(self, animals):
self.name = 'my zoo'
self.hours = '8am-6pm'
animals = {animal.name:animal for animal in animals}
self.animals = ObjAsAttributes(**animals)
animal_list = [Animal(name='bird', num_legs=2, furry=False),
Animal(name='giraffe', num_legs=4, furry=True),
Animal(name='octopus', num_legs=8, furry=False)]
zoo = Zoo(animal_list)
zoo.animals.bird.num_legs
# returns 2