python scrape website

relatively lightweight Python web framework, the blogger originally intended to use the watercress that (the background of the watercress is written by Python), but found too difficult, so instead of using flask. The benefits of flask are straightforward and straightforward. @app. Route ('/') def Home (): #mysql_manager. Sql_connect () return render_template (' index.html ') @app. Route (' /signup

of the Gbit. We have to use them in the 1-4X1 Gbit Ethernet pool (the performance of multiple network cards is aggregated into a single virtual network card). In the end, we have some newer sr2600 i7 Intel architecture servers that achieve a non-performance loss of up to ten Gbps bandwidth through fiber optics. The results of all of the above summaries are calculated based on such hardware conditions. English Original: GERGELY KALMAN, compile: @ old yards of private plotsLink: http://blog.jobb

测试数据： wget http://files.grouplens.org/datasets/movielens/ml-100k.zip unzip ml-100k.zip2.1 Creating a data table for hive CREATE TABLE u_data ( userid INT, movieid INT, rating INT, unixtime STRING)ROW FORMAT DELIMITEDFIELDS TERMINATED BY ‘\t‘STORED AS TEXTFILE;2.2 Loading Data:LOAD DATA LOCAL INPATH ‘/home/hadoop/ml-100k/u.data‘OVERWRITE INTO TABLE u_data;2.3 Creating a weekday_mapper.py Scriptimport sysimport datetimefor line in sys.stdin: line = line.strip() userid, movieid, rating, uni

Early heard that using Python to do web crawler is very convenient, just these days units also have such a demand, need to log on XX website to download part of the document, so I personally tested some, the effect is not bad. In this case, a Web site that is logged on needs to provide a username, password, and authentication code, which uses Python's urllib2 to directly log on to the site and process cook

://www.csdn.net/'}start_urls=["http://www.csdn.net/"]Reload (SYS)Sys.setdefaultencoding (' Utf-8 ')Type = Sys.getfilesystemencoding ()def start_requests (self):return [Request ("Http://passport.csdn.net/account/login", meta={' Cookiejar ': 1},callback=self.post_login,method= " POST ")]def post_login (self,response):Html=beautifulsoup (Response.text, "Html.parser")For input in Html.find_all (' input '):If ' name ' in Input.attrs and input.attrs[' name '] = = ' LT ':lt=input.attrs[' value ']If ' n

Preface: because oneself or is a Python world pupil, still have a lot of way to go, so this article aims for the guide, achieves the goal, for those I have not understood the principle, does not do to do too much explanation, lest fraught, everybody may search on the net.friendly hint: This code uses the URL only for the Exchange study use, if has the inappropriate, please contact deletes.background: I have a computer to give dad to use, the Don likes

Execution conn.commit () print data[1]+ "----- --------Success " except: # Rollback When an error occurs conn.rollback () print ' ERROR ' # Close database connection Conn.close () main.py#-*-Coding:utf-8-*- import urllibimport jsonimport dbimport threadingimport timedef timer (): t = Threading. Timer (5,starttask) #每5s执行一次任务 t.start () def startTask (): path = "Http://yue.fm/api/articles/random" result = Urllib.urlopen (path).

Their website because of the data more, while the night is nothing to write a crawl URL through Python automatically submitted to Baidu, the implementation of the site to submit the idea, the code implementation is very simple, because the writing time storage, inevitably some bugs, can be placed on the server configuration under the scheduled crawl submission.Import OS import re import shutil Reject_filety

First, the circulation1. Fornames = ['Michal','Bob','Tracy'] forNameinchnames:Print(name) sum=0 forXinch[1, 2, 3, 4, 5, 6, 7,8,9,10]: Sum= Sum +xPrint(sum)#Print Digital 0-9 forXinchRange (10): Print(x)2. Whilesum =0n= 99 whilen >0:sum= Sum +N N= N-2Print(SUM) n= 1 whileN : ifn > 10:#when n = 11 o'clock, the condition is met, the break statement is executed Break #The break statement ends the current loop Print(n) n= n + 1Print("End") n=0 whileN : N= n + 1ifn% 2 = = 0:#if n i

Learning + interest combined to crawl pictures (feeling also OK, is a bit slow, 135 pictures took 37 seconds, another day with multi-threaded try):#encoding =utf-8Import Requests,re,os,timeFrom BS4 import BeautifulSoupClass Stone ():#获取照片urldef get_url (self):#创建图片链接列表pictures = []url = ' http://hs.blizzard.cn/article/16/11477 'urls = requests.get (URL)t = urls.contentSoup =beautifulsoup (T, "Html.parser")#获取所有链接的元素Pic_div = Soup.find_all (' img ', style= "border:none; box-shadow:none;")#循环将图片链接

Always have love to watch the habit of watching the United States, on the one hand to exercise English listening, to pass the time. Before the video site can be seen on the online, but since the SARFT restrictions, the import of the United States drama, such as the British drama does not seem to be the same as before synchronized update. However, as a house Diao I do not have a play after it, so casually check on the Internet to find a can use the Thunder download the American play download site

do. But the people here may be working for a company, or they may be like self-employed. How does the website do it? It's a lot of practice. There is a direct HTML page written, useful what other open source system to do, and so on. Starting from this talk, I and yours faithfully crossing to see, with Python How to make a website. Wikipedia has the following des

Python 3.6.3 official website download installation test getting started tutorial (windows), python3.6.3 1. Download Python 3.6.3 from the official website. Visit the Python official https://www.python.org/ Click Downloads => Python