Python

Original address:the role of the @ symbol in Python queerfisherThe ' @ ' symbol used as a function modifier is a new addition to python2.4, and the modifier must appear on the previous line of the function definition and is not allowed on the same

1 #Encoding=utf-82 Importcmd3 ImportSYS4 5 6 #cmd module Exercises7 8 classClient (cmd. CMD):9 Ten " " One 1) cmdloop (): Similar to the Tkinter Mainloop, run the CMD parser; A 2) Onecmd (str): read input, and processing, usually do not need to

Class Infantry (object): Def __init__ (self, Mediator, name): Self.name = name Self.mediator = Mediator def send (self, msg): Self.mediator.send (msg, self) def notify (self, msg): Print Self.name + "Get infomation:" + msgclass Airforce

Today I met a fence code to crack and wrote a generic script.1 #!/usr/bin/env python2 #-*-CODING:GBK-*-3 #-*-coding:utf_8-*-4 #Author: Blue Line5 #Http://www.cnblogs.com/duanv6E = Raw_input ('Please enter the string to decrypt \ n')7Elen =Len

When debugging a Python program, generally we can only debug in the following ways:1. Logs already in the program2. Insert the import PDB in the code; Pdb.set_trace ()However, the above methods also have inconvenient places, such as the already

Code:[Email protected]:/study/python# cat write.py #!/usr/bin/pythonoutput_file = open ("Test.txt", "W") Output_file.write (" Write test\n ") output_file.close () output_file = open (" Test.txt "," a ") Output_file.write (" Write test\n ") output_

In the regular expression re module, the ASCII code is found in the FindAll, so the corresponding ASCII code is needed to match the replacement. The following program is to find the folder under the file name contains the male and female files, and

turn from : How to become a python masterThis article is mainly a summary of some of the articles I have collected. Because there are many more talented people than I have written a lot about how to be a good Python programmer.My summary is mainly

Pythonis an elegant language, concise grammar, powerful features. Of course, the rich third-party library, more able to accelerate the development. So the question is, how do you install these third-party libraries (packages)? There are few ways to

1. Principle:This program can achieve bulk access to a CSDN blog's personal information, directory and link to the corresponding, and coexist in a directory of the Mulu.txt file2. Specific code:#-*-coding:cp936-*-import urllib.request#import

Scene when such, I have a lot of tasks, I want to give these 任务计时 , warehousing. An adorner with parameters is required to record the 任务 name, and it is necessary to document the time the task was executed before and after the task was executed.

Example Analysis of enumerate function usage in python, pythonenumerate This example describes how to use the enumerate function in python. Share it with you for your reference. The specific analysis is as follows: A new function enumerate was

Details about attributes and methods of Python programming, and details about python programming examples This article describes how to use attributes and methods in Python programming. Share it with you for your reference. The specific analysis is

Install pip and windowspip in Windows Step 1: Set Python environment variables (my Python is 2.7.3) Setx path "% path %; D: \ python \ Scripts"   You can also set it in [my computer]-[properties]-[advanced. Step 2: Download the get-pin file (:

Modified Kaprekar Numbers, modifiedkaprekar Link: Https://www.hackerrank.com/challenges/kaprekar-numbers 1 from __future__ import print_function 2 3 4 def find_kaprekar(num): 5 6 num_square = str(num ** 2) 7 8 if len(num_square) == 1: 9

Common python Functions   Python built-in functions Enumerate   >>> List (enumerate ('abc ')) [(0, 'A'), (1, 'B'), (2, 'C')]   The enumerate function can also receive the second parameter. >>> List (enumerate ('abc', 1 )) [(1, 'A'), (2, 'B'),

Example Analysis of threading hyperthreading usage in python, pythonthreading This example describes how to use threading hyperthreading in python. Share it with you for your reference. The specific analysis is as follows: Threading is a Java-based

Python instance analysis of list sorting method and python instance analysis This article describes how to sort the list by Python. Share it with you for your reference. The specific analysis is as follows: 1. sort () function The sort ()

Python batch conversion file encoding format, Self-written method, applicable to linux, #!/usr/bin/python#coding=utf-8import sysimport os, os.pathimport dircacheimport commandsdef add(x,y): return x*ydef trans(dirname): lis =

Collect and sort out some common Python methods and skills 1. Three Methods to reverse a string1.1. Simulate the method in C ++ and define an empty string for implementationSet an empty string, traverse the strings in the parameter from the back to