'在__new__中，`super()`是什么？'

Question

注意：Python的flyweight实现的一部分

import weakref

class CarModel:
    _models = weakref.WeakValueDictionary()

    def __new__(cls, model_name, *args, **kwargs):
        model = cls._models.get(model_name)
        if not model:
            model = super().__new__(cls)
            cls._models[model_name] = model    
        return model

    def __init__(self, model_name, air=False):
        if not hasattr(self, "initted"):
          self.model_name = model_name
          self.air = air
          self.initted=True

问题1 super()是什么意思？这是否意味着CarModel的父类？

问题2我也很难理解函数__new__是如何工作的？具体来说，下面这一行。

model = super().__new__(cls)

__new__的说明：

The constructor function is called __new__ as opposed to __init__, and accepts exactly one argument, the class that is being constructed (it is called before the object is constructed, so there is no self argument). It also has to return the newly created object.

Answer 1

super()用于引用超类（即从中进行子类化的父类）。

__new__是一个调用的方法，用于创建类的新实例（如果已定义）。