What are python built-in class attributes? How to call python built-in class properties?

In this article, let’s learn about the built-in class attributes in python. Some friends may have just come into contact with the programming language python and have less understanding of python’s built-in attributes. Not sure about the python built-in class attributes. In the next article, we will learn about Python's built-in class attributes.

python built-in class attributes

1.__dict__: attributes of the class (contains a dictionary composed of data attributes of the class)

2.__doc__ :Document string of the class

3.__name__: Class name

4.__module__: Module where the class is defined (the full name of the class is '__main__.className', if the class is located in an import In the module mymod, then className.__module__ is equal to mymod)

5.__bases__: All parent classes of the class constitute elements (contains a tuple composed of all parent classes)

Python built-in classes An example of attribute calling is as follows:

# !/usr/bin/python
# -*- coding: UTF-8 -*-
class Employee:
    '所有员工的基类'
    empCount = 0
    def __init__(self, name, salary):
        self.name = name
        self.salary = salary
        Employee.empCount += 1
        
    def displayCount(self):
        print "Total Employee %d" % Employee.empCount
        
    def displayEmployee(self):
        print "Name : ", self.name, ", Salary: ", self.salary
        
print "Employee.__doc__:", Employee.__doc__
print "Employee.__name__:", Employee.__name__
print "Employee.__module__:", Employee.__module__
print "Employee.__bases__:", Employee.__bases__
print "Employee.__dict__:", Employee.__dict__

The output result of executing the above code is as follows:

Employee.__doc__: 所有员工的基类
Employee.__name__: Employee
Employee.__module__: __main__
Employee.__bases__: ()
Employee.__dict__: {&#39;__module__&#39;: &#39;__main__&#39;, &#39;displayCount&#39;: <function displayCount at 0x10a939c80>, &#39;empCount&#39;: 0, &#39;displayEmployee&#39;: <function displayEmployee at 0x10a93caa0>, &#39;__doc__&#39;: &#39;\xe6\x89\x80\xe6\x9c\x89\xe5\x91\x98\xe5\xb7\xa5\xe7\x9a\x84\xe5\x9f\xba\xe7\xb1\xbb&#39;, &#39;__init__&#39;: <function __init__ at 0x10a939578>}

The above is all the content described in this article. This article mainly introduces python built-in class attributes knowledge. I hope you can use the information to understand what is said above and the examples given. I hope what I have described in this article will be helpful to you and make it easier for you to learn python.

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