TimeoutException(message, screen, stacktrace) selenium.common.exceptions.TimeoutException: 消息：

Question

I use this line code to wait until product_id appear, My code works well for about 30 minutes

    element = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, product_id)))

And then, I get an error

TimeoutException(message, screen, stacktrace)selenium.common.exceptions.TimeoutException: Message: 

I tried to change WebDriverWait to 100, but I still can't solve them. I want to understand why to appear this error and any solution for this case. Thanks so much !!!

This is my solution, but I want to know the cause of this error and looking for a better solution

  while True:
    driver.get(URL)
    try:
        element = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, product_id)))
        break
    except TimeoutException:
        driver.quit()

Answer 1

Can you provide HTML example? Without HTML example it's nearly impossible to debug for you. Code & HTML example will be helpful.

My guess is that your website uses dynamic id locators, or using iframe, or in your script, selenium is active on other tab/window/iframe/content. This is assuming your product_id is correct.

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Update with the example:

from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By

PRODUCT_ID = 'productTitle'

driver = webdriver.Chrome()
driver.get("https://www.amazon.com/dp/B08BB9RWXD")
try:
    element = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, PRODUCT_ID)))
    print(element.text)
except TimeoutException:
    print("Cannot find product title.")

driver.quit()

I don't have any problem using above code. You can extend it by youself :).

One thing that you need to note is that you DO NOT use while & break . WebDriverWait(driver, 10) already does the loop to find your element for 10 seconds. In this 10 seconds, if it finds your element, it will stop finding ( break ). You don't need to do the while loop yourself.