google recaptcha v2

captcha.py

import time
from selenium import webdriver

driver = webdriver.Firefox()

driver.get('https://www.google.com/recaptcha/api2/demo')

captcha_frame = driver.find_element_by_css_selector('iframe[src*="api2/anchor"]')
driver.switch_to_frame(captcha_frame)
driver.find_element_by_css_selector('.recaptcha-checkbox-checkmark').click()
driver.switch_to_default_content()
while 1:
    try:
        image_frame = driver.find_element_by_css_selector('iframe[src*="api2/frame"]')
    except:
        time.sleep(1)
        continue
    else:
        break
driver.switch_to_frame(image_frame)

time.sleep(2)

images = driver.find_element_by_css_selector('img.rc-image-tile-33')
buttons = driver.find_elements_by_css_selector('table.rc-imageselect-table-33 td')
verify_button = driver.find_element_by_css_selector('#recaptcha-verify-button')
try:
    instructions = driver.find_element_by_css_selector('.rc-imageselect-desc')
except:
    instructions = driver.find_element_by_css_selector('.rc-imageselect-desc-no-canonical')

print(images.get_attribute('src'))
print(instructions.text)

inputs = map(lambda x: int(x.strip()) - 1, raw_input().split(','))

for index in inputs:
    buttons[index].click()

verify_button.click()

driver.switch_to_default_content()
time.sleep(1)
driver.find_element_by_css_selector('input[type=submit]').click()

time.sleep(5)

driver.quit()