Python

Problem Description Environment: CentOS6.5 You want to use PYTHON3 for development in this environment, but the CentOS6.5 default Python environment is version 2.6.6. The previous practice is to install python3 directly from the source, replace the

This example describes how Python clears non-alphabetic characters in a string. Share to everyone for your reference. Specific as follows: s = "Hello world! How is it? 0 "# Short version print filter (lambda C:c.isalpha (), s) # Faster version for

The example in this article describes how Python implements Ping. Share to everyone for your reference. Specific as follows: #!/usr/bin/env python#coding:utf-8import OS, sys, socket, struct, select, time# from/usr/include/linux/icmp.h; Your milage

There is a problem: compare two list ranges, return True if included, otherwise false. The detailed topics are as follows: Create a function, this function receives-lists as parameters, each list indicates a scope of numbers, the function Ju Dges

The example in this article describes how Python implements a merged dictionary. Share to everyone for your reference. The implementation method is as follows: # merge two dictionaries #!/usr/bin/pythondef adddict (dict1,dict2): xin = {} for key

This example describes the Python statistics log IP access number method. Share to everyone for your reference. Specific as follows: Import Ref=open ("/tmp/a.log", "R") arr={} lines = F.readlines () for line in lines: ipaddress=re.compile (R ' ^#

Python2, from Python 2.3 to Python 2.7.6, has been installed python3.3.3 for the purpose of understanding the new features of Python3. It is convenient to find it. The versions of Python coexist independently and do not conflict with each other.

In many programming languages, there is the ability to format strings, such as formatted input and output in C and Fortran languages. Python has a built-in operation to format the string. Template When formatting a string, Python uses a string as a

This example describes the Python implementation of using Telnet to log in to the chat room. Share to everyone for your reference. Specific as follows: A simple chat room that was written a long time ago at home to learn python, you can use Telnet

1. Read and display the file Method 1:Copy the Code code as follows: F=open (R ' G:\2.txt ') Print F.read () F.close () Method 2: Copy CodeThe code is as follows: Try T=open (R ' G:\2.txt ') Print T.read () Finally If T: T.close () Method 3:

The Python script file is packaged as an executable file for two purposes: A: You do not need to rely on the Python compiler to run the softwareTwo: Do not want to let their own source published Commonly used tools are: Py2exe, Cx_freeze,

Let's talk about decorators today. The adorner is a well-known design pattern, which is often used in scenes where there is a demand for facets, with the classic insert log, performance test, transaction processing, and so on. Decorators are a great

The examples in this article describe the classes that Python implements to search for files and replace them with content. Share to everyone for your reference. The implementation method is as follows: #!/usr/bin/python-o# coding:utf-8 ""

Python contains a number of built-in language features that make the code simple and easy to understand. These features include list/set/dictionary derivation, property, and Adorner (decorator). For most features, these "intermediate" language

This example describes the use of the Argparse module in Python. Share to everyone for your reference. The specific analysis is as follows: Usually when writing command-line tools, often with parameters, so with Python in the argparse to achieve. #-

This paper describes the implementation method of Python encryption and decryption based on DES algorithm. Share to everyone for your reference. The implementation method is as follows: #coding =utf-8 from functools import partial Import Base64

The example in this paper describes the simple RPG game flow implemented by Python. Share to everyone for your reference. Specific as follows: #RPGrpg = truewhp = 100MAHP = 100hhp = 100MHP = 10def dgrnd (): WA = raw_input ("What does Warrior does?")

At the weekend at home, wrote a small program for converting Arabic numerals to uppercase Chinese. The program has not been optimized, haunted by detailed testing, hanging to the Internet, to facilitate the future when necessary to use directly. #!/

The example in this article describes how Python clears script in all files in a specified directory. Share to everyone for your reference. Specific as follows: Save the script as stripscripts.pyCall syntax: Python stripscripts.py Usage

In this paper, we describe Python's method of implementing Hill sort algorithm. Share to everyone for your reference. Specific as follows: def shellsort (items): inc = Len (items)/2 while Inc.: for I in Xrange (len (items)): j = i