In chapter 6, Interacting with forms, we logged in to the example website using a manually created account, but we skipped the account creation part because the registration form requires passing a CAPTCHA:

Note that each time the form is loaded, a different CAPTCHA image will be shown. To understand what the form requires, we can reuse the parse_form() function developed in the preceding chapter.

>>> import requests
>>> REGISTER_URL = 'http://example.webscraping.com/user/register' 
>>> session = requests.Session() 
>>> html = session.get(REGISTER_URL)
>>> form = parse_form(html.content) 
>>> form
{'_formkey': '1ed4e4c4-fbc6-4d82-a0d3-771d289f8661', 
 '_formname': 'register', 
 '_next': '/', 
 'email': '', 
 'first_name': '', 
 'last_name': '', 
 'password': '', 
 'password_two': None, 
 'recaptcha_response_field': None} 

All of the fields shown in the preceding code are straightforward, except for recaptcha_response_field, which, in this case, requires extracting strange from the image shown in our initial page view.