python requests basic auth

The previous nine articles from the basis to the writing have done a detailed introduction, the tenth is a perfect, then we will be detailed records of a crawler how to write a step by step, you crossing can see carefully First of all, the website of our school: Http://jwxt.sdu.edu.cn:7777/zhxt_bks/zhxt_bks.html Query results need to log in, and then show the results of each subject, but only show the results and no performance points, that is, weighted average score. Obviously, it's a very tr

Hint: This study comes from Ehco predecessor's article, after realizes the note.Target sitehttp://dianying.2345.com/top/Website structureThe part to crawl, under the UL tag (including the Li Tag), roughly iterate over the content output of the Li tag.Problems you are experiencing?The code is simple, but there are a lot of problems.One: CodingThe GBK is used uniformly here.Two: libraryThe process of missing requests,bs4,idna,certifi,chardet,urllib3 and

Python web crawler PyQuery basic usage tutorial, pythonpyquery Preface The pyquery library is implemented in Python of jQuery. It can use jQuery syntax to parse HTML documents. It is easy-to-use and fast-to-use, and similar to BeautifulSoup, it is used for parsing. Compared with the perfect and informative BeautifulSoup documentation, although the PyQuery library

Socketserver simplifies the authoring of Web servers. It has 4 classes: Tcpserver,udpserver,unixstreamserver,unixdatagramserver. These 4 classes are processed synchronously, and asynchronous is supported by the Forkingmixin and ThreadingMixIn classes. Steps to create a server. First, you must create a request processing class, which is a subclass of Baserequesthandler and overloads its handle () method. Second, you must instantiate a server class, the address of the incoming server, and the req

1. Urllib2.urlopen (Request)url = "http://www.baidu.com" #url还可以是其他协议的路径, e.g. ftpvalues = {' name ': ' Michael foord ', ' Location ': ' Northampton ', language': ' Python '} data = Urllib.urlencode (values) user_agent = ' mozilla/4.0 (compatible;MSIE 5.5; Windows NT) ' headers = {' User-agent ': user_agent} request = Urllib2. Request (URL, data, headers) #也可以这样设置header: Request.add_header (' user-agent ', ' fake-client ') response = Urllib2.urlopen (

The basic use of the Python crawler's urllib libraryImport urllib2response = Urllib2.urlopen ("http://www.baidu.com") print Response.read ()In fact, the above Urlopen parameters can be passed to a request requests, it is actually a request class instance, constructs the need to pass in the Url,data and so on content. Like the two lines of code above, we can rewri

page, but a page can not be shared by multiple objects,Vm-page-size is set according to the size of the stored data, the author suggests that if you store many small objects, the page size is preferably set to 32 or 64bytes;If you store very large objects, you can use a larger page, and if you are unsure, use the default valuesVm-page-size 3225. Set the number of pages in the swap file, since the page table (a bitmap that indicates that the page is idle or used) is in memory and consumes 1byte

": None} try:cid = Request. Post.get ("cid") CNAME = Request. Post.get ("CNAME") sql = "Update class set cname =%s WHERE cid =%s" Sqlmodus.put (Sql,[cname,cid,])Except Exception as e:ret["status"] = falseret["message"] = "Handling Exception" return HttpResponse ((ret))//using JSON to convert objects to String return templateModal and new URLs application scenario analysis:Modal dialog box (Ajax) for:-Few input boxes-less Data example: LoginNew URL mode-operation multi-for a large number of data

some reason the IP address is not properly assigned, the NAK message is sent as a response informing the user that the appropriate IP address cannot be assigned. DHCP Release When the user no longer needs to use the assigned IP address, it will proactively send the release message to the DHCP server, informing the server that the user no longer needs to assign an IP address, and the DHCP server will release the bound lease. DHCP decline After the DHCP clien

Beautiful Soup is a html/xml parser written in Python that handles non-canonical markup and generates a parse tree. It provides simple and common navigation (navigating), search and modify the parse tree operation. It can greatly save your programming time.installation1. You can use PIP or Easy_install to install, the following two ways can beEasy_install Beautifulsoup4pip Install Beautifulsoup42. If you want to install the latest version, please down

First of all, the website of our school: Http://jwxt.sdu.edu.cn:7777/zhxt_bks/zhxt_bks.html Query results need to log in, and then show the results of each subject, but only show the results and no performance points, that is, weighted average score. Obviously, it's a very troublesome thing to manually calculate the points of merit. So we can use Python to do a crawler to solve this problem. 1. Eve of Showdown First, prepare the tool: Httpfox plugin

Elasticsearch (search engine) basic index and document CRUD operationsthat is, basic indexing and documentation, adding, deleting, changing, checking, manipulatingNote: The following operations are all operating in the KibanaElasticsearch (search engine) is based on the HTTP method to operateGET requests the specified page information, and returns the entity Prin