Python Selenium randomly fails to find element-CodePudding

My script is doing the same thing for every car in a list, but at a random passage

vec = WebDriverWait(driver, 60).until(
                        expected_conditions.visibility_of_element_located((
                            'id', 'elp.jobDetailsVehicle.input.jobVehicleEngineCode'))).get_attribute('value')

fails to find the element and i get this error:

  File "script.py", line 79, in check_recall
    WebDriverWait(driver, 60).until(
  File "C:\Users\Be26.LANGWEDEL\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\support\wait.py", line 89, in until
    raise TimeoutException(message, screen, stacktrace)
selenium.common.exceptions.TimeoutException: Message: 
Stacktrace:
Backtrace:
    Ordinal0 [0x0125FDC3 2555331]
    Ordinal0 [0x011F77F1 2127857]
    Ordinal0 [0x010F2E08 1060360]
    Ordinal0 [0x0111E49E 1238174]
    Ordinal0 [0x0111E69B 1238683]
    Ordinal0 [0x01149252 1413714]
    Ordinal0 [0x01137B54 1342292]
    Ordinal0 [0x011475FA 1406458]
    Ordinal0 [0x01137976 1341814]
    Ordinal0 [0x011136B6 1193654]
    Ordinal0 [0x01114546 1197382]
    GetHandleVerifier [0x013F9622 1619522]
    GetHandleVerifier [0x014A882C 2336844]
    GetHandleVerifier [0x012F23E1 541697]
    GetHandleVerifier [0x012F1443 537699]
    Ordinal0 [0x011FD18E 2150798]
    Ordinal0 [0x01201518 2168088]
    Ordinal0 [0x01201660 2168416]
    Ordinal0 [0x0120B330 2208560]
    BaseThreadInitThunk [0x76C3FA29 25]
    RtlGetAppContainerNamedObjectPath [0x77057A9E 286]
    RtlGetAppContainerNamedObjectPath [0x77057A6E 238]

I already tried conditions like presence_of_element_located - same error. It's completely random. Any ideas?

EDIT: This is the entire loop:

for line in lines:
    if line[3] == '.':
        license_plate = line[23:33]
        name = line[38:52]
        vin = line[88:105]
        if '-' in license_plate and 'VSSZZZ' in vin:
            driver.switch_to.frame(driver.find_element('id', 'mainFs'))

            entry_license_plate = driver.find_element('id', 'elp.searchVehicle.input.licensePlate')
            entry_license_plate.send_keys(license_plate)

            driver.find_element('id', 'vaws.vehsearch.btn.search').click()

            vec = WebDriverWait(driver, 60).until(
                expected_conditions.visibility_of_element_located((
                    'id', 'elp.jobDetailsVehicle.input.jobVehicleEngineCode'))).get_attribute('value')

            WebDriverWait(driver, 60).until(
                expected_conditions.visibility_of_element_located(('id', 'vaws.sys.recall')))

            try:
                recall = driver.find_element('id', 'recall.info.state').get_attribute('src')
            except NoSuchElementException:
                recall = driver.find_element('id', 'recall.info.warning').get_attribute('src')

            if 'dummy.gif' in recall or 'info.gif' in recall:
                recall = 'Nein'
            elif 'warning.gif' in recall:
                recall = 'Ja'

            final_list  = f'{name} | {license_plate} | {vin} | Motor-Kennbuchstabe: {vec} ' \
                          f'| Feldmaßnahme: {recall}\n'

            print('done')

            driver.switch_to.default_content()

            WebDriverWait(driver, 60).until(
                expected_conditions.visibility_of_element_located(('id', 'toolbar.button.new.job'))).click()

The page is a in-house site from our company, so i'm not allowed to show it.

CodePudding user response：

This just means that the 60 second timeout ended without having observed what is in the until method.

Try to put this inside of a try :

try:
    vec = WebDriverWait(driver, 60).until(
                        expected_conditions.visibility_of_element_located((
                            'id', 'elp.jobDetailsVehicle.input.jobVehicleEngineCode'))).get_attribute('value')
except:
    print("Timeout")

Or, to try again until we got no error :

while True:
    try:
        vec = WebDriverWait(driver, 60).until(
                        expected_conditions.visibility_of_element_located((
                            'id', 'elp.jobDetailsVehicle.input.jobVehicleEngineCode'))).get_attribute('value')
        # break out of the loop if successful
        break
    except:
        # continue the loop if not successful
        continue
    print("Timeout")

CodePudding user response：

Ok, i think i found the problem: at the beginning i load the default profile with options.add_argument(f'--user-data-dir={os.getenv("LOCALAPPDATA")}\\Google\\Chrome\\User Data' Without that i don't have these random errors. Does anyone know why?