In the above Python script, first we defined a function that will parse the form by using lxml python module and then it will print the form requirements as follows − īrowser = urllib2.build_opener(urllib2.HTTPCookieProcessor(ckj)) With the help of next Python script we can understand the form requirements of registration form on website named. Suppose we want to do registration on a website and there is form with CAPTCHA, then before loading the CAPTCHA image we need to know about the specific information required by the form. Most of the websites use CAPTCHA to prevent bots from interacting. The full form of CAPTCHA is Completely Automated Public Turing test to tell Computers and Humans Apart, which clearly suggests that it is a test to determine whether the user is human or not.Ī CAPTCHA is a distorted image which is usually not easy to detect by computer program but a human can somehow manage to understand it. In this chapter, let us understand how to perform web scraping and processing CAPTCHA that is used for testing a user for human or robot.
