python docstring example

This article mainly introduces the shape calculation matrix method in Python, and involves implementation skills related to Python mathematical operations. if you need it, refer to the following article to introduce the shape calculation matrix method in Python, implementation skills related to Python mathematical oper

Python callback function usage Example Analysis This article mainly introduces the usage of the python callback function, analyzes in detail the commonly used call methods, and introduces the usage skills of the Python callback function. For more information, see There are always some interfaces between software module

Let's talk about our school website: Http://jwxt.sdu.edu.cn: 7777/zhxt_bks/zhxt_bks.html To query the score, You need to log on and then display the score of each discipline, but only the score is displayed without the score, that is, the weighted average score. Obviously, it is very troublesome to manually calculate the performance point. So we can use python as a crawler to solve this problem. 1. the eve of the decisive battle Prepare the httpfox

large unlock. According to the order of the concurrent multithreading in sequential output, if the following thread execution too fast, you need to wait for the previous process to end its ability to finish--writing seems a bit like the concept of a queue, but in many of the scenes with locks can indeed be resolved through the queue. Finally, introduce an example, in the stock quantitative Analysis (ii) PE and Circulation market value article, intro

This example describes the self principle in Python. Share to everyone for your reference. The specific analysis is as follows: The methods of a class have only one particular difference from a normal function-they must have an extra first parameter name, but you don't assign a value to this parameter when you call the method, and Python provides that value. Thi

In this article we learn about the Python Popitem function in the python dictionary, what the python popiteme function means, and what the function will do in the next article. Description of the Python popiteme function The Python Dictionary Popitem () method randomly

For example, the Python Tornado framework for data visualization tutorial, pythontornado Extended modules used Xlrd: An extension tool for reading Excel in Python. You can read a specified form or cell.Installation is required before use.: Https://pypi.python.org/pypi/xlrdDecompress the package and cd it to the decompressed directory. Execute

Python's threading module provides a variety of lock-related methods, Python multi-threaded can not be executed at the same time, so the use of locks is very critical, we will give an example of Python programming in the use of the thread Lock: Lock Python's built-in data structures, such as lists and dictionaries, are thread-safe, but simple types such as integ

Code example for asynchronous processing of Python Web framework Tornado1. What is Tornado Tornado is a lightweight but high-performance Python web framework. Compared with another popular Python web framework Django, tornado does not provide ORM interfaces for database operations and strict MVC development modes, but

represents the name lookup order: Locals, enclosing function, globals, builtins locals 是函数内的名字空间，包括局部变量和形参 enclosing 外部嵌套函数的名字空间（闭包中常见） globals 全局变量，函数定义所在模块的名字空间 builtins 内置模块的名字空间所以，在 Python 中检索一个变量的时候，优先回到 locals 里面来检索，检索不到的情况下会检索 enclosing ，enclosing 没有则到 globals 全局变量里面检索，最后是到 builtins 里面来检索。Example:[[emailprotected] python_learn]# ./getvalue.py Ex Gy EzLx Gy Ez[[emailprotected] python_lear

If a directory name is given, the output path and the empty file name Second, the example1. Common examples >>> u = "www.doiido.com.cn" #使用默认分隔符 >>> print u.split () [' www.doiido.com.cn '] #以 "." As separator >>> print u.split ('. ') [' www ', ' doiido ', ' com ', ' cn '] #分割0次 >>> Print u.split ('. ', 0) [' www.doiido.com.cn '] #分割一次 >>> print u.split (' . ', 1 ] [' www ', ' doiido.com.cn '] #分割两次 >>> print u.split ('. ', 2) [' www ', ' doiido ', ' Com.cn '] #分割两次,

In the following article we will look at what is custom classes in Python。 Find out what is Python custom class, and what the Python custom class can do in Python programming. It is important to note that a variable or function name such as __xxx__ is similar to __slots__, which has a special purpose in

Regardless of the conventional approach, let's try a lightweight and practical example. It will give you an idea of the initial feeling behind the TK program. DesignThe example we use is a simple GUI tool that converts a number in a unit of foot into a metric unit number equal to it. If we describe it briefly, it should look like this: it looks like we need a short text input widget that allows us to ente

Example of how to read and write csv files using Python, This example describes how to read and write csv files in Python. We will share this with you for your reference. The details are as follows: Create a csvdata.csv file with the following data: The Code is as follows: # Coding: utf-8import csv # Read csv file met

Python optionParser module usage example tutorial, pythonoptionparser This article describes how to use the optionParser module in Python in detail in the form of examples. It is of great reference value for deep learning Python. Share it with you for your reference. The specific analysis is as follows: In general,

Python pygame module usage example, pythonpygame The example in this article describes the usage of the pygame module in python and shares it with you for your reference. The specific method is as follows: import pygame, sys from pygame.locals import * #set up pygame pygame.init() windowSurface = pygame.display.set_m

This example describes the Python adorner decorator usage. Share to everyone for your reference. The specific analysis is as follows: 1. Closures (closure) A closure is a feature supported by Python that allows a function defined in a non-global scope to reference a variable in its outer space, which is referred to as the environment variable of the function. Th

In this article, let's look at the fileIsatty () method in Python, and before entering the article we first need to know what we are going to learn, and we don't know what it is. Because today is about Python in the file method inside the Fileisatty () method, the file class method a lot of an article is not finished, So today we speak only among the Python Fi

Using python to write MapReduce functions -- Taking WordCount as an ExampleAlthough the Hadoop framework is written in java, the Hadoop program is not limited to java, but can be used in python, C ++, ruby, and so on. In this example, write a MapReduce instance using python instead of using Jython to convert the

Python simple definition and use of the dictionary dict method example, pythondict This example describes how to define and use a dictionary in Python. We will share this with you for your reference. The details are as follows: # Coding = utf8print ''' the dictionary ing data type in