grabbing console log output for a chrome browser using python and selenium

Question

Title sums it up really. I'm completely new to using selenium with python. Using a python script, I'm trying to run a command on a website's console, then I'm trying to retrieve the output from that command to be used by my python script.

from selenium import webdriver
from selenium.webdriver.common.by import By

chromedriver = "path to driver"
driver = webdriver.Chrome(executable_path=chromedriver)

# load some site
driver.get('http://example.com') #orignally I used foo.com but stackoverflow doesn't like that

driver.execute_script("console.log('hello world')")
# print messages
for entry in driver.get_log('browser'):
    print(entry)

but this doesn't return anything

Upon performing an inspect element on the page opened and going to the console. I saw that my hello world message was indeed there.

But I have no idea why this isn't being returned by my code. Any help would be super appreciated, thankyou!

Does this answer your question? Getting console.log output from Chrome with Selenium Python API bindings — ShoeLace
– ShoeLace, Commented Jun 9, 2023 at 2:06

Michael Mintz · Accepted Answer · 2022-10-25 16:01:16Z

1

Here's how to save the console logs and print them out:

from selenium import webdriver

driver = webdriver.Chrome()

driver.execute_script("""
    console.stdlog = console.log.bind(console);
    console.logs = [];
    console.log = function(){
        console.logs.push(Array.from(arguments));
        console.stdlog.apply(console, arguments);
    }
    """)

driver.execute_script("console.log('hello world ABC')")
driver.execute_script("console.log('hello world 123')")

print(driver.execute_script("return console.logs"))

driver.quit()

Here's the output of that:

[['hello world ABC'], ['hello world 123']]

answered Oct 25, 2022 at 16:01

Michael Mintz

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