python对象

Python object() function returns a new featureless object. Python is an object-oriented programming language and object is the base of all the classes.

Python object（）函数返回一个新的无特征对象。 Python是一种面向对象的编程语言，而object是所有类的基础。

Python对象（） (Python object())

Python object() function doesn’t accept any argument. Since it returns a new instance of an object, all its methods are present in other classes too.

Python object（）函数不接受任何参数。 由于它返回对象的新实例，因此其所有方法也存在于其他类中。

There is hardly any practical use to call this function since it’s featureless. The object instance returned doesn’t have a __dict__ dictionary, so we can’t assign any arbitrary attributes to it.

调用此函数几乎没有实际用途，因为它没有功能。 返回的对象实例没有__dict__ 字典 ，因此我们不能为其分配任何任意属性。

obj = object()print(type(obj))print(dir(obj))print(obj.__hash__())

Output:

输出：

<class 'object'>
['__class__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
270490892

Notice that dir() function output doesn’t have __dict__ as an attribute.

注意，dir（）函数的输出没有__dict__作为属性。

Let’s see what happens when we try to assign an attribute to this object instance.

让我们看看尝试为该对象实例分配属性时会发生什么。

obj.i = 10

Output:

输出：

AttributeError: 'object' object has no attribute 'i'

Reference: Official Documentation

参考： 官方文档

翻译自: https://www.journaldev.com/22988/python-object

python对象