Python

The Python Pass statement uses when the statement requires that you do not want any commands or code to execute. The pass statement is an empty (null) operation, and nothing happens at execution time. The pass is also the code that will eventually

The round () method returns the decimal point of X rounded to n digits. Grammar The following is the syntax for the Round () method: Round (x [, N]) Parameters X--This is a numeric expression N--This is also a numeric expression

The choice () method returns a random item from a list, tuple, or string. Grammar The following is the syntax for the choice () method: Choice (seq) Note: This function is not directly accessible, so we need to import the random module, and

The random () method returns a randomly floating-point number R, so that 0 is less than or equal to R and R is less than 1. Grammar The following is the syntax for the random () method: Random () Note: This function is not directly

The example in this article describes how Python sorts the list. Share to everyone for your reference. The specific analysis is as follows: 1. Sort () function The sort () function sorts the list using a fixed sorting algorithm. The sort ()

This example describes a simple timer class used by Python in thread encapsulation. Share to everyone for your reference. The implementation method is as follows: From threading Import Timerclass mytimer:def __init__ (self): self._timer= none Self.

File more disorderly put, suddenly one day found that hard disk space is not enough, so wrote a Python script search all files larger than 10MB, see if these large files have duplicate copies, if there are, all listed in order to manually

The examples in this article describe how Python uses WMI to detect Windows System Information, hard disk information, and network card information. Share to everyone for your reference. The implementation method is as follows: #!/usr/bin/env

The example in this article describes how Python records verbose call stack logs. Share to everyone for your reference. The implementation method is as follows: Import Sysimport osdef Detailtrace (info): retstr = "" curindex=0 f = sys._getframe

The Isalpha () method checks whether a string consists of only letters. Grammar The following is the syntax for the Islpha () method: Str.isalpha () Parameters NA return value This method returns true if all characters in the string

The examples in this article describe how Python submits data through post. Share to everyone for your reference. The implementation method is as follows: #-*-coding:cp936-*-import urllib2import urllibdef posthttp (name=none,tel=none,address=none,

As seen from an article, PIL 1.1.5 has built-in Gaussian blur, but is not mentioned in the document, and PIL Gaussian blur in the radius is hard-coded, although the construction method has the incoming radius parameters, but there is no use (see

The examples in this article describe how Python writes strings to files in English. Share to everyone for your reference. The specific analysis is as follows: If the file opened using the system default open method can only be written to ASCII in

Origin We all know that the recent network is not harmonious, slow speed does not say, the VPN is always broken, fortunately, the ladder provides a lot of server can switch, but the ladder server is very many, Linux Network Manager does not support

Using Python to access MySQL requires a series of installation Linux under MYSQLDB installation seePython mysqldb fast installation under LinuxHttp://www.jb51.net/article/65743.htm -------------------------------------------------------------The

Fabric Title is development, but at the same time to do development testing and operation of the work ... For Mao Task*3 Not salary * 3 (O (╯-╰) o) Recently took over more and more things, release and operation of the work is quite mechanical,

Principles, DateTime-centric, start-up or transit, into the target object, covering the date conversion processing required in most business scenarios Steps: 1. Mastering several objects and their relationships2. Understand the basic operation

In this paper, the method of solving Narcissus number by Python is described. Share to everyone for your reference. Specific as follows: A n-bit decimal positive integer, if its number on each bit is n-th and equals the number itself, it is called

The examples in this article describe how Python uses MongoDB. Share to everyone for your reference. Specific as follows: 1. Start MongoDB Mongod--dbpath d:\db 2. Launch for System Application Mongod--dbpath d:\db--install--logpath

The example in this article describes how Python implements copying the entire directory. Share to everyone for your reference. The specific analysis is as follows: Python has a very good directory operation class Library Shutil, through this