Bypass Captchas with Python: Selenium + Chaojiying Tutorial

1. Introduction

Hello, I'm PiPi. In a Python community I was asked about handling captchas during web crawling, so I’m sharing a third solution after two earlier methods.

2. Implementation

The approach uses Selenium to locate the captcha image, then uploads it to the third‑party service Chaojiying for recognition. The returned text can be used to complete login automatically.

from selenium import webdriver
from selenium.webdriver.common.by import By
import time
from PIL import Image
import ddddocr
from chaojiying import Chaojiying_Client

ocr = ddddocr.DdddOcr()

options = webdriver.ChromeOptions()
options.add_argument('user-agent=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36')
options.add_argument('--disable-blink-features=AutomationControlled')

driver = webdriver.Chrome(options=options)

# Open target page
driver.get('https://sol.sinosure.com.cn')
time.sleep(3)

# Capture captcha
img = driver.find_element(By.XPATH, '//*[@id="codeimage"]').screenshot_as_png
chaojiying = Chaojiying_Client('666', '666', '923043')
print(chaojiying.PostPic(img, 1902))  # returns a dict

dic = chaojiying.PostPic(img, 1902)
verify_code = dic["pic_str"]
print(verify_code)

Running the script successfully prints the decoded captcha string.

3. Conclusion

The article presents a practical Python method for solving captchas using Selenium and the Chaojiying platform, adding a third option to the previously discussed two methods.