当一个字典时，lambda函数如何返回相同的结果

Question

import copy

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

class A(object):
    def __init__(self):
        self.apps = {}

    def create_app(self, name):
        app = B(name)
        if name not in self.apps:
            self.apps[name] = app
        return app

a = A()

b1 = a.create_app("111")
b2 = a.create_app("222")
b3 = a.create_app("333")

for name, app in a.apps.items():
    app.get_name = lambda: name

for name, app in a.apps.items():
    new_name = copy.deepcopy(name)

    def namegetter():
        return new_name
    app.get_name2 = namegetter

print(b1.get_name())
print(b2.get_name())
print(b3.get_name())

print(b1.get_name2())
print(b2.get_name2())
print(b3.get_name2())

我定义了A类和B类，并将不同的func get_name和get_name2分配给b1 ... b3，而不幸的是a.apps ，当三个b对象调用get_name和get_name2时，它们都返回“333”，我不明白......