Python

First, the script functionLogin interface-Enter user name, password-User name, password is empty, prompt-Wrong three times lock-After successful authentication, display welcome login informationSecond, flow chart650) this.width=650; "Src=" Http://s4.

# import math# print coerce (1l, 134) #  "" "Data type Conversion" "" # print coerce (0.4,  123) # print coerce (0j, 234) # print divmod (125, 5) #  "" "Division Operation" "#  Print divmod (4, 3) # print pow (2, 4) #  "" "Secret" "# print round (3)

str1 =  ' abced ' For i in range ( -1, -len (str1),  -1)  + [None]:     print str1[:i]s, t =  ' abc ',  ' Def ' Print zip (s, t) for  I, t in enumerate (STR1):     print i, tprint isinstance (' foo ') ,  str) Import stringdef checkid ():     alphas =

DEFFUNC1 ():     alist = [' Cathy ', ' Terry ', ' Joe ', ' health ', ' Lucy ']     for i in  range ( -1,-len (alist) -1,-1):       PRINTI,ALIST[I]DEFFUNC2 ():     alist = [' Cathy ', ' Terry ', ' Joe ', ' health ', ' Lucy

#!/usr/bin/python#-*-coding:utf-8-*-#Filename:backUp.py#Import TemplateImportTkinterImportOSImport Time#define functions, here's the essence.defbackup ():GlobalEntry_sourceGlobalEntry_target Source=entry_source.get () Target_dir=entry_target.get ()

Recently due to work needs, need to add numbers on the image, query the data, wrote a method, and tested, because the code used in the PIL library, need to download the installation,: http://www.pythonware.com/products/pil/, Download

Brief introduction　　On the knowledge of Python, in fact, I would like to open a series of separate, but because of their lazy, until now has not been implemented. Recently feel that they really do not have the face in the delay, so will learn from

Module Configparser ModuleConfigparser is used to process files in a particular format, essentially using the open operation fileFor example, the following format file:1 [Section1] 2 k1 = Ture3 k2 = v24 K10 = 12356[Section2] 7 k1 = v1View CodeThe

# -*- coding: utf-8 -*-from pyqt4.qtcore import pyqtsignaturefrom  pyqt4.qtgui import qdialogfrom pyqt4 import qtgui,qtcorefrom ui_createkey  Import ui_createkeyimport base64,uuidclass createkey (Qdialog, ui_createkey):     def __init__

Objective: To convert a picture into a character drawing, using the algorithm of gray value and character to realize the conversion between pixel and character, in addition, byArgparse implementation of command line parameter management, argparse

Python re module (Regular Expression) grouping, assertion details, pythonreDetailed explanation of Regular Expression grouping and assertions Tip: reading this article requires a certain regular expression basis.   The assertions in regular

Python while is a simple example of loop usage, pythonwhile A while LOOP is one of the loop structures in Python. The while LOOP continues until the expression changes to false. The expression is a logical expression and must return a true or false

Python uses the Bottle Lightweight Framework for Web development, pythonbottleweb Currently, Django is the most popular framework in Python Web development, but this article introduces a lightweight Web Framework: Bottle framework. Let's stop

Using virtualenv to build a Python + Flask Development Environment on Windows, virtualenvflask About virtualenv: VirtualEnv is used to create multiple independent Python virtual runtime environments on a machine. Multiple Python environments are

The implementation method of calling functions based on strings in python. In python, functions can be called Based on strings: 1. Use getattr to call a function from a string In a multi-process, a string may be passed over. How can I call an

Python Flask site integrated xhEditor text editor tutorial, XhEditor IntroductionXhEditor is a simple mini-and efficient visual HTML editor developed based on jQuery. It is network-based and compatible with IE 6.0 +, Firefox 3.0 +, Opera 9.6 +, and

Python implements url encoding for Chinese conversion, This example describes how to convert Chinese characters into url encoding in python. We will share this with you for your reference. The details are as follows: Today, I want to deal with

Getattr (), setattr (), delattr (), hasattr (), and getattrsetattr of Python 1. The getattr () function is the core function of Python introspection. Its usage is roughly as follows: Class A: def _ init _ (self): self. name = 'hangjing' # self. age =

Python Asyncore asynchronous Socket module and example of port forwarding, pythonasyncore The Asyncore module provides the infrastructure for writing data to the socket service client and server asynchronously. There are only two ways for a program

[Django] User permission Learning Series-User permission basic operation commands, django operation commands For the user management system that comes with Django background, although it still feels OK, but in order to facilitate some user