Python

Preface: In addition to the recent study work, there is a friend of the opposite sex need to crawl Dynamic Web page requirements, enter keywords to crawl a patent website under the keyword of some patent description. Previous direct Python urllib2

1000-digit Fibonacci Numberproblem 25The Fibonacci sequence is defined by the recurrence relation: f n = f n? 1 + f n? 2, where F1 = 1 and F2 = 1. Hence The first terms would be: F1 = 1 F2 = 1 F3 = 2 F4 = 3

Quadratic Primesproblem 27Euler discovered the remarkable quadratic formula:N2 + n + 41It turns out that the formula would produce the primes for the consecutive values n = 0 to 39. However, when n = 41, 402 + + + = (+ 1) +-is divisible by, and

Look at Jenkins's Python API and JSON API, feeling that the difference is not much, but there is a difference, so use beyondcompare for comparative analysis.1, the Jenkins base URL API comparisonTo the left:

1. Python: An interpretive, object-oriented, high-level programming language with dynamic semantics.2. Development stage of Python-cnri Period-beopen Period-DC Period-python 3.0Python milestone: 2010, Python won the annual Tiobe programming language

Write to yourself to see, afraid of their own forgottenA project to get a transplant, which will involve the header file reference problem, a change too much trouble, decided to use Python regular match replacement. But I don't know how to access

1. Installing the Pypinyin module$ pip install pypinyin2. How to use>>> fromPypinyinImportPinyin, Lazy_pinyin>>>ImportPypinyin>>>Pinyinu ' Center ')[[u ' zh\u014dng '], [u ' x\u012bn ']]# Enable Polyphone mode>>>Pinyinu ' Center ', heteronym=True) [

Original: http://blog.csdn.net/yangzhencheng_001/article/details/40342449The company's website gave me a headache. In many senior masters of the lead, a large number of CMD in the site to run well, hacker attacks also good, only the site and I do

Simulates the Linux cat command, printing the file name entered from the command line#!/usr/bin/python#filename:cat.pyhelpstring = "This program prints files to the standard output. Any number of the files can be specified. Options include:--version:

#!/usr/bin/env python#date:2015-06#author:ley#cur the Nginx ' s access_log#-*-coding:utf-8-*-import os,timepath=['/ var/log/nginx/', '/var/run/nginx/nginx.pid ', ' Access.log ']time=time.strftime ('%y-%m-%d ') command= "CD%s &&/ Bin/cp%s%s

Python string encoding identification module (third party libraries):Official address: Http://pypi.python.org/pypi/chardetimport chardetimport urllib # 可根据需要，选择不同的数据TestData = urllib.urlopen(‘http://www.baidu.com/‘).read()print

Recently contacted Python crawlers to crawl the school news headlines, dates, clicks as an example, to record the progress of the workCurrently, the process of feeling a Python crawler is no more than two steps:Step1. Obtaining a Web page URL (using

Haven't written a blog for a long time, may be lazy, it may also feel that they have previously written something quite low, there is no great interest to write blog.The practical training has already begun, hoped oneself in this time thinking level,

Python: Simulate the linux Command cat Simulate the cat command in linux and print the file name entered from the command line.   #! /Usr/bin/python # Filename: cat. pyhelpString = ''' \ This program prints files to the standard output. any

Comparison of map and list derivation efficiency in Python instance analysis and python instance analysis This article describes how to compare the efficiency of map and list derivation in Python. Share it with you for your reference. The specific

Method for adding JSON fields to the Model in Django, djangojson This example describes how to add a JSON field to a Model in Django. Share it with you for your reference. The details are as follows: In Django, let the Model be used for JSON

The method for converting data formats in the Python struct module, pythonstruct Python is a very concise language, and its representation of data types is not as predefined in other languages (for example, in C #, 8 types of optical integers are

Python is based on the Tkinter HelloWorld entry instance, tkinterhelloworld This example describes a Tkinter-based Python HelloWorld entry-level instance. Share it with you for your reference. The specific analysis is as follows: I am going to use

Chinese character string Truncation in Python, Let's look at an example: #-*-Coding: utf8-*-s = U' Chinese cut's. decode ('utf8') [0: 3]. encode ('utf8') # result U' Chinese Truncation Additional reading: How many bytes of Chinese characters in

Python implements SSL-based IRC bot instances and pythonsslircbot This example describes how to implement an SSL-based IRC bot in python. Share it with you for your reference. The details are as follows: #! /Usr/bin/python #-*-coding: