Python

Example:Copy codeThe Code is as follows:Def re_escape (fn ):Def arg_escaped (this, * args ):T = [isinstance (a, VerEx) and a. s or re. escape (str (a) for a in args]Return fn (this, * t)Return arg_escaped Function nestingWhen defining a function,

Python has powerful library files and many functions all have corresponding library files, so it is necessary to learn about it. One of the ftp library files is ftplib, we only need the login function, and then use multiple threads to call the

Copy codeThe Code is as follows:Import pdbDef pdb_test (arg ):For I in range (arg ):Print (I)Return argPdb. run ("pdb_test (3 )")  Function B Name and row number: When a breakpoint is set, B can query all breakpoints.Copy codeThe Code is as follows:(

Copy codeThe Code is as follows:Import httplibImport OSImport time Def check_http (I ):Try:Conn = httplib. HTTPConnection (I, 80, timeout = 2)Conn. request ("GET ","/")Response = conn. getresponse ()Failed t Exception as e:Print "server" + I + "is

PySide is a free software. Unlike PyQt, it uses LGPL to allow PySide to develop commercial software for free.PySide has 15 modules. These modules support operations on the GUI, multimedia, XML, network, and database. This tutorial aims to learn two

Copy codeThe Code is as follows:/*** Quick sorting implemented by Recursive Method* @ Param $ seq* @ Return array*/Function quicksort ($ seq){If (count ($ seq)> 1 ){$ K = $ seq [0];$ X = array ();$ Y = array ();$ _ Size = count ($ seq); // do not

In one case, recursive operations are required, but the number of recursion times is very large, with more than 10 thousand. Let's not talk about the recursion for more than 10 thousand times. The original test code is java, and the jdk and

Because try/try t/finally is often used when processing files, Python provides a statement to replace this mode, that is, using the with statement, when using with for file operations, you do not need to perform finally operations, as shown below:  

Python dictionary built-in method get ApplicationTo obtain the dictionary value, we have two methods: dict ['key'] And dict. get. Today we will share with you the get () method of the dictionary. Here we can use a dictionary to make a small game.

This post gives the guide of how to use sqlalchemy's engine, session and query API and change the results into JSON format. from sqlalchemy import create_engine,Column,Integer,Stringfrom sqlalchemy.ext.declarative import declarative_basefrom

System Environment: VC6 + Python-2.5.4 1. Download the Python-2.5.4 source code. 2. decompress the package and open D: \ Python-2.5.4 \ PC \ VC6 \ pcbuild. dsw, compile, and D: \ Python-2.5.4 \ PC \ VC6 \ to obtain python25.dll, python25_d.dll,

I tried hard drive yesterday and found a good thing. Unfortunately, I did not remember it when I added the password. I tried a few common ones and did not try them out, so I wrote such a small script to try it for me .. Oh, I can solve it.The python

Random INTEGER:>>> Import random>>> Random. randint (0, 99)21 Randomly select an even number between 0 and 100: >>> Import random >>> Random. randrange (0,101, 2) 42 Random Floating Point Number: >>> Import random >>> Random. random () 0.85415370

Generally, creating a PyQt4 can be completed in a few steps. The common method is to use the QtDesigner tool provided by Qt to create an interface. With QtDesigner, you can easily create complex GUI interfaces. Then, you can create parts and add

Copy codeThe Code is as follows:Def loginTom (username, password ):Url1 = '''Http://login.mail.tom.com/cgi/login'''Values = {'Type': '0 ','User': '% s' % username,'In _ username': '% s@tom.com' % username,'Pass': '% s' % password,'Style': '21

Python 2.7.6 and BS4 can be run in powershell or command lines. Make sure that the BS module is installed.Copy codeThe Code is as follows:#-*-Coding: utf8 -*-#2013.12.36 19:41 wnlo-c209# Capture the image of dbmei.com. From bs4 import

The Code is based on Python3.3.3 and PyQt5.1.1. Copy codeThe Code is as follows:#-*-Coding: UTF-8 -*-# Python 3.3.3# PyQt 5.1.1Import sys, time, re, urllib. parse, urllib. request, http. cookiejar, jsonFrom PyQt5.QtCore import *From PyQt5.QtGui

Copy codeThe Code is as follows:Import urllib. parse, OS. path, time, sysFrom http. client import HTTPSConnectionFrom PyQt5.QtCore import *From PyQt5.QtGui import *From PyQt5.QtWidgets import * # PathOspath = sys. path [0]If len (ospath )! =

Copy codeThe Code is as follows:#! /Usr/bin/env/python# Coding = UTF-8Import mechanicImport cookielib # Cookie JarCj = cookielib. LWPCookieJar () # BrowserBr = mechanic. Browser ()Br. set_cookiejar (cj) # Browser optionsBr. set_handle_equiv (True)

First, the registration method is generally to instantiate a template. Library first. For example: from django import templateregister = template.Library() 1. register the custom filter method Register. filter ('A', B) The two parameters in the