python docstring example

Example of common file operation functions of the shutil module in Python, The OS module allows you to create, delete, and view file attributes for directories or files, as well as perform path operations on files and directories. For example: absolute path, parent directory ...... However, OS file operations should also include operations such as mobile copy, pa

When you learn Python, you will encounter the fact that Web site content is dynamically requested by Ajax and asynchronously refreshes the generated JSON data, and it is not possible to crawl the contents of static Web pages before using Python. So this article is going to tell you about crawling Ajax dynamically generated data in Python. As for the way to read

Introduction and example of the built-in function getattr () in python, pythongetattr In the official python documentation: getattr () is explained as follows: getattr(object, name[, default])Return the value of the named attribute of object. name must be a string. If the string is the name of one of the object's attributes, the result is the value of that attrib

Python example code for XML file parsing, pythonxml 1. XML Introduction XML (eXtensible Markup Language) is an eXtensible Markup Language designed to transmit and store data. It has become the core of many new technologies and has different applications in different fields. It is an inevitable product of the development of web to a certain stage. It has both the core features of SGML and the simple features

This example describes the Python pyunit unit test, which is similar to the Erlang eunit unit test, and shares it for everyone's reference. Here's how: The 1.widget.py file is as follows: Copy the Code code as follows:#!/usr/bin/python # Filename:widget.py Class Widget:def __init__ (self, size = (40, 40)):Self.size = Sizedef getsize (self):Return self.sizedef r

This article mainly introduces the usage of list loop statements in python, and describes in detail the list parsing of Python in the form of examples, including various common traversal operations and principle analysis, for more information about the list statement usage in python, see the following example. Share it

This blog originates from Hubaud Master's junior-class NoSQL course design, using Python+mongodb combination method, the data from TXT file into MongoDB, and then take it out to the drawing. The main technology is the use of Python and MongoDB combined storage reading scheme, so this blog intercepted part of the lesson set, the main explanation of Python operatio

Python-nmap is an encapsulation of NMAP commands, allowing Python to operate the Nmap scannerFirst install NmapYum Install Nmap-y# #shell命令操作端口扫描方法见此文: http://blog.51cto.com/superleedo/2094273Then install the Python-nmap moduleOpen https://pypi.org/project/python-nmap/#fileswget https://files.pythonhosted.org/packages/

For the first time a friend of the Python programming language, just beginning to learn Python programming for input and output in PythonThis aspect of the understanding is relatively small, in this article we will come to understand python input and outputRelated knowledge. Output You can output the specified text to the screen by using print () to enclose the

This article mainly introduces the Python generator definition and simple usage, combined with the example form more detailed analysis of the Python generator concept, principles, usage and related operations considerations, the need for friends can refer to the following The examples in this article describe Python b

Install python (https://www.python.org/), download the latest Python version Configure environment variables. (Example), I installed Python under/installation folder with Python 3.5.2. The path set is as follows:d:\installation\python3.5.2;d:\installation\python3.5.2\scrip

This article describes how to use the smtplib module in Python to process emails. it is a basic knowledge in Python beginners. if you need it, you can refer to it in Internet-based applications, programs often need to automatically send emails. For example, the registration system of a website will send an email to confirm registration when the user registers. wh

For example, the Null mode and Bridge Mode Programming in Python, pythonnull Null ModeI think everyone has an experience. In order to obtain a certain attribute, but sometimes the attribute is None, you need to handle exceptions. If you want to save code for such conditional filtering, the Null mode can be used to reduce whether the object is set to None. Python

We all know that the basic usage of else in Python is the if...elif...else in the conditional control statement ..., but else there are two other uses, one for the end of the loop and the other for the error-handling try. This was originally the standard syntax for Python, but because of the different habits of most other programming languages, people intentionally or unintentionally ignored these usages. I

Python slice usage example tutorial, This article describes how to use the slice operation in Python in the form of an example and shares it with you for your reference. The details are as follows: It is very common to retrieve some elements of a list or tuple. For example,

Example of how to use a function (closure) in a Python function. This example describes how to use the Python closure. We will share this with you for your reference. The details are as follows: You can also define functions, that is, closures, in Python functions. Similar t

starting today with Python's system learning begins writing essays hoping to help people who see them. Preview: 1. Installation of Python2 and Python3 for multi-version coexistence 2, write code in Python language, require input user information: name, age, home address, and then print 3, the old boy's age is 63, asked to make a guess age of the game user input of the age is small hint: too small user input age is the hint: too big users guess the a

Example of Python Json serialization and deserialization, json serialization Different programming languages have different data types, such: Python data types include dict, list, string, int, float, long, bool, and None)Java data types include bool, char, byte, short, int, long, float, and double)C Data types include bit, bool, char, int, short, long, unsigned,