CODEWITHSUNDEEP
pythonseleniumselenium-chromedriverspawn
user3257755
user3257755

Reputation: 347

Python Selenium - How to terminate unsuccessfully spawned Chromedriver?

The following line of code is executed in my Python script:

driver = webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options = chrome_options)

This line may either fail or succeed, depending on apparently random conditions (It is due to an extension that is being loaded, but that is not relevant here).

The problem is that even if this line fails, and raises a WebDriverException, an instance of Chromium will still be spawned, eventually flooding my entire desktop because I am running this line in a while loop until it works.

The following block of code does not work because driver is not defined.

try:
    driver = webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options = chrome_options)
except WebDriverException:
    driver.quit()

How to do this in a clever way?

Upvotes: 4

Views: 6149

Answers (1)

undetected Selenium
undetected Selenium

Reputation: 193388

As you mentioned you have the following line :

driver = webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options = chrome_options)

And this line may either fail or succeed. So there are 2 usecases which can be addressed as follows :

  • Success : Incase the above mentioned line of code is Success we will use driver.quit() straight away as follows :

    try:
    driver = webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options = chrome_options)
    #other code
    driver.quit()

  • Failure : Incase the above mentioned line of code is Failure we will use the taskkill command from os module to force-kill the chromedriver process straight away as follows :

    import os
#other code
try:
    driver = webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options = chrome_options)
    #other code
    driver.quit()
except WebDriverException:
        os.system("taskkill /im chromedriver.exe")

Trivia

Through the command webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options = chrome_options) irrespective of whether Chromiumsession is spawned or not, a separate chromedriver session will be always spawned which we have taken care in our code. If you want to kill the Chromiumsession as well, you have to add the following line as well :

os.system("taskkill /im chrome.exe")

Upvotes: 1

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