Python

1. Common File Operations in python include open, write, read, readline, readlines, writelines, seek, tell, and close. The prototype of the open function is open (name [, mode [, buffering]), and name is the path name of the file. The common mode is

Python is often used to check whether the server can be pinged and whether the program runs properly (check whether the corresponding port is normal) Previously, shell scripts were written as follows:Copy codeThe Code is as follows:PINGRET = $ (ping

Copy codeThe Code is as follows:#! /Usr/bin/python# Coding: UTF-8# Write: JACK# Info: ftp exampleImport ftplib, socket, OSFrom time import sleep, ctime Def LoginFtp (self ):Ftps = ftplib. FTP ()Ftps. connect (self. host, self. port)Ftps. login (self.

As we all know, after a program is started, each program file will be loaded into the memory, so if the program text changes again, it will not affect the running of the current program, which is a protection for the program. However, for languages

Copy codeThe Code is as follows:#-*-Coding: UTF-8 -*-'''Created on December 9, 2013 @ Author: hhdys''' Import OSImport mysql. connector Config = {'User': 'root ','Password ':'******','Host': '2017. 0.0.1 ','Database': 'test ','Raise _ on_warnings ':

Copy codeThe Code is as follows:# _ * _ Coding: utf_8 _Import sysImport OS Class Graph ():Def _ init _ (self, V, E ):Self. V = VSelf. E = ESelf. visited = []Self. dict = {}Self. fd = open ("input.txt ")Def initGraph (self ):Self. visited = [0 for I

Copy codeThe Code is as follows:From win32com. client import DispatchExImport timeIe = DispatchEx ("InternetExplorer. Application ") Ie. Navigate ("http://hi.baidu.com/mirguest/creat/blog ")Ie. Visible = 1While ie. Busy:Time. sleep (1) Body = ie.

Compile tasks. pyCopy codeThe Code is as follows:From celery import CeleryFrom tornado. httpclient import HTTPClientApp = Celery ('task ')App. config_from_object ('celeryconfig ')@ App. taskDef get_html (url ):Http_client = HTTPClient ()Try:Response

 Copy codeThe Code is as follows:#! /Usr/bin/python#-*-Coding: UTF-8 -*- From PyQt4.QtGui import *From PyQt4.QtCore import *From PyQt4.Qt import * Class CLabel (QWidget ):SignalLabelPress = pyqtSignal ()Def _ init _ (self, parent = None ):Super

Copy codeThe Code is as follows:#! /Usr/bin/python#-*-Coding: UTF-8 -*- From push_button import *From clabel import *From common import * From PyQt4.QtGui import *From PyQt4.QtCore import *From PyQt4.Qt import * Class CharacterWidget (QWidget ):Def _

Different verification function check inputs are called based on different configuration files. You can change the logic of the verification function as needed. Copy codeThe Code is as follows:Def VerifyData (func ): Def VerifyInt (data ):Assert

Copy codeThe Code is as follows:Import socketDef open_tcp_socket (remotehost, servicename ):S = socket. socket (socket. AF_INET, socket. SOCK_STREAM)Portnumber = socket. getservbyname (servicename, 'tcp ')S. connect (remotehost, portnumber ))Return

Copy codeThe Code is as follows:# Encoding: UTF-8Import socketImport htmllib and formatterDef open_socket (host, servname ):S = socket. socket (socket. AF_INET, socket. SOCK_STREAM)Port = socket. getservbyname (servname)S. connect (host, port

Git log is a very useful 'historical 'material for managing project development with git. The requirement is from here. We hope to have a custom Filtering for git log. This script completes this type of task. For commit in all branch of a repo, the

Copy codeThe Code is as follows:#-*-Coding: cp936 -*-Import sysImport urllib2Import jsonFrom PyQt4 import QtCore, QtGuiClass MyWindow (QtGui. QLCDNumber, QtGui. QWidget ):Def _ init _ (self, parent = None ):Super (MyWindow, self). _ init _

Install pywin32 first, and call winapi interfaces in windows Copy codeThe Code is as follows:## _ * _ Coding: UTF-8 _*__ Author _ = 'shanl' Import win32apiImport win32conImport win32guiFrom ctypes import *Import time VK_CODE = {'Backspace':

The quanta (also known as Hanoi) problem is originated from an ancient legend of India's educational toys. When I created the world, da fan Tian made three diamond pillars, stacked 64 gold disks from bottom to top in order of size. The great fan

Copy codeThe Code is as follows:# Coding = UTF-8# Dialog boxImport sysFrom PyQt4 import QtGui, QtCoreClass Window (QtGui. QWidget ):Def _ init _ (self ):Super (Window, self). _ init __()Self. setWindowTitle ("hello ")Self. resize (500,500)Gridlayout

Copy codeThe Code is as follows:#-*-Coding: UTF-8 -*-Import sysFrom PyQt4 import QtCore, QtGuiClass MyWindow (QtGui. QWidget ):Def _ init _ (self, parent = None ):QtGui. QWidget. _ init _ (self, parent)Self. setWindowTitle ("weather ")Self. resize (1

Here, we will quickly introduce Python's process-oriented programming from the perspective of C language developers. 1> Basic Data Type Integer, long integer, floating point, and plural. The first three types are similar to those of C, and the