Python login and posting Method

This article mainly introduces how to log on to and post a message using python. It involves URL simulated login and cookie usage skills and has some reference value, for more information about how to log on to Douban using python and post it, see the example in this article. Share it with you for your reference. The details are as follows:

Use of urllib, urllib2, and cookielib

Log on to Douban. Because there is a verification code, you can download the verification code image to the same directory, view the image, and enter the verification code to log on and post it.

The post content is in the code.

# -- Coding: gbk -- import sys, time, OS, reimport urllib, urllib2, cookielibloginurl = 'https: // www.douban.com/accounts/login'cookie = cookielib. cookieJar () opener = urllib2.build _ opener (urllib2.HTTPCookieProcessor (cookie) params = {"form_email": "your email", "form_password": "your password", "source ": "index_nav" # unsuccessful logon if not found} # submit logon response = opener from the homepage. open (loginurl, urllib. urlencode (params) # if response. geturl () = "https://www.douban.com/accounts/login": html = response. read () # Verification Code image address imgurl = re. search ('', html) if imgurl: url = imgurl. group (1) # Save the image to the same directory res = urllib. urlretrieve (url, 'v.jpg ') # obtain the captcha-id parameter captcha = re. search ('', Html) if captcha: vcode = raw_input ('Enter the verification code on the image :') params ["captcha-solution"] = vcode params ["captcha-id"] = captcha. group (1) params ["user_login"] = "login" # submit the verification code for response = opener. open (loginurl, urllib. urlencode (params) ''' log on to the homepage ''' if response. geturl () = "http://www.douban.com/": print 'login success! 'Print 'preparing to post' p = {"ck": ""} c = [c. value for c in list (cookie) if c. name = 'ck '] if len (c)> 0: p ["ck"] = c [0]. strip ('"') addtopicurl =" http://www.douban.com/group/python/new_topic "res = opener. open (addtopicurl) html = res. read () m = re. search ('', Html) p ["topic_id"] = m. group (1) m = re. search ('', Html) p ["topic_id_sig"] = m. group (1) p ["rev_title"] = 'title' p ["rev_text"] = 'send body' p ["rev_submit"] = 'OK, speak 'request = urllib2.Request (addtopicurl) request. add_header ("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/4100.1132.57 Safari/536.11") request. add_header ("Accept-Charset", "GBK, UTF-8; q = 0.7, *; q = 0.3") request. add_header ("Origin", "http://www.douban.com") request. add_header ("Referer", "http://www.douban.com/group/python/new_topic") opener. open (request, urllib. urlencode (p ))

I hope this article will help you with Python programming.