Python

Python objects can be copied in the shortest copy and deep copy modes. The analysis of these two copies is very beneficial in "python core programming", so it is recorded here.   Id () method: the id () method can view the ID of an object, similar

Copy codeThe Code is as follows:Import OSImport sysImport pickleImport stringImport reImport timeFrom datetime import dateFrom csv_timestamp_datetime import * Ip_region_list = pickle. load (open ('IP _ region_list.pickle', 'R '))Ip_region_list.sort (

Copy codeThe Code is as follows:Function cal_pace (d, h, m, s ){Var distance = d;Var hours = h;Var minutes = m;Var seconds = s;If (distance. length> 0 & hours. length> 0 & minutes. length> 0 & seconds. length> 0){Var speed = parseFloat (hours) * 60.0

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/python3.2Import OS, socketImport urllibImport urllib. request, threading, timeImport re, sysGlobal manhuaweb, weburl, floder, chapterbegin, currentthreadnum, threadcount, mutex, mutex2 Weburl =''Floder

Copy codeThe Code is as follows:# Coding: UTF-8"""_ New _ and _ init _ are the same thing. Let's look at the following code:If the _ new _ method is not defined for a class, the _ new _ method is inherited from the parent class._ New _ run before _

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.

1. Create a folder nester for the module nester, which contains: nester. py (module File ): Copy codeThe Code is as follows:"This is the" nester. py "module, which provides a function named print_lol,The function is used to print the list. The

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:Import sysFrom PyQt4 import QtGui, QtCoreClass Window (QtGui. QMainWindow ):Def _ init _ (self ):QtGui. QMainWindow. _ init _ (self)Self. setWindowTitle ('hello ')Self. resize (800,500) Menubar = self. menuBar ()Self.

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

This is the second part of the Python interpreter introduction. Click here for the first part. The three steps before compilation are to check a simple function object. Now let's talk about the deeper object-the Code object of the function. >>> 

Someone asked me on Twitter why Python uses the 0-based array index (0-based), and gave me a link to the relevant excellent articles. This reminds me of a lot of past events: one of the predecessor of Python, the ABC language uses the array index

When you use python2.7 and GAE's dev_appserver.py to enable the server and start the python program File "C: \ Python27 \ lib \ mimetypes. py", line 249, in enum_typesCtype = ctype. encode (default_encoding) # omit in 3.x!UnicodeDecodeError: 'ascii

Sometimes you want to get all the content of a text file, but do not want to open the file, read the file, close the file, these steps need to be encapsulated with a small program, complete the operations required to obtain the file content in one

Conversion between characters and character values   In Python,Character and character value, Direct conversion, includingASCII code and lettersBetween,Unicode code and numberBetween; You can also useMapBatch Conversion, The output is a set,

There are many articles about reading xml from python, but most of them post an xml file and then post the code for processing the file. This is not conducive to learning for beginners. I hope this article will be easier to understand and teach you

I used webpy a few years ago to make some small things. Today I have something to pick up webpy. But I basically forgot about it. The old saying "a good memory is worse than a bad pen ". Here we will sort out the corresponding steps. Prerequisites: