在 selenium 中找不到任何元素

Question

Please bear with me this is my first real project and I'm trying to code an automated Amazon.com checkout with the help of Python and Selenium.

The biggest issue is for now that the webdriver seems unable to locate the "Buy Now" and "Confirm Check Out" button on the defined product page. I have tried different methods (using XPATH, CSSSELECTOR and NAME) but none are working.

Anyone got a tip for me? Please find my code above:

# This count variable is used to check if the product has been bought, if yes it will be 1.
count = 0
page_refreshed = 1
# This while loop is used to check for the "Buy Now" button until it is enabled by Amazon.
while count<= 1:

    # This try statement used to click on the "Buy now" Button and click the "Submit Order" Button on the following page
    try:
        buy_now = driver.find_element_by_css_selector('#buy-now-button')
        buy_now.click()
        driver.implicitly_wait(8)
        buy = driver.find_element_by_css_selector('#bottomSubmitOrderButtonId > span > input')
        buy.click()
        count += 2
        print("Buttons clicked! The item has been bought!");print()
    # This except statement used to reload the page every second until the add to cart option is enabled
    except:
        if count <= 1:
            print("Button not appeared, reloading...page reloaded "+str(page_refreshed)+" times!")
            driver.refresh()
            page_refreshed += 1
        pass

Answer 1

Due to page refreshing the first element may not be appearing try using Webdriver waits to allow the page to load.

buy_now = driver.find_element_by_css_selector('#buy-now-button')

Replace with

buy_now=WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#buy-now-button")))

Import

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