selenium 4 raises exception without useful message

selenium 4 raises exception

example code:

driver = webdriver.Chrome()
driver.get("http://www.python.org")
assert "Python" in driver.title
elem = driver.find_element_by_name("q")
elem.clear()
elem.send_keys("pycon")
elem.send_keys(Keys.RETURN)
assert "No results found." not in driver.page_source
driver.close()

issue log:

Traceback (most recent call last):
...
File "C:\Users\AppData\Local\Programs\Python\Python312\Lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response
    raise exception_class(value)
selenium.common.exceptions.WebDriverException: Message:

investigation:

Run below code:

from selenium import webdriver
import logging

logging.basicConfig(level=logging.DEBUG)

def main() -> int:
    browser = webdriver.Firefox()
    browser.get('http://selenium.dev/')
    return 0
    
if __name__ == "__main__":
    raise SystemExit(main())

From the output, it shows something related to proxy.

solution:

  • downgrade to selenium 3.14.1
  • remove proxy in environment variable

reference link

github issue

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