Selenium find_element 尝试除了“WebElement”对象不可调用

Question

我在网页上搜索 ID lieferschein。

如果我在没有 try 和 except 块的情况下进行搜索，我可能会找到 ID，

tab_check = driver.find_element_by_id('lieferschein')

如果不

try:

    tab_check = driver.find_element_by_id('lieferschein')

    # break

except:

    pass

我收到这样的错误：

Traceback (most recent call last):

  File "<input>", line 3, in <module>

TypeError: 'WebElement' object is not callable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "<input>", line 6, in <module>

TypeError: 'WebElement' object is not callable

全码：

from selenium import webdriver

import pickle

from selenium.common.exceptions import NoSuchElementException

abURL = 'https://farm01.afterbuy.de/afterbuy/auktionsliste.aspx?AWebayname=&AWFilter=37&AWSuchwort=&AWRENummer=&AWFilter2=0&awmaxart=500&maxgesamt=1000&AWEmail=&AWDatumVon=&AWDatumBis=&AWBezug=EndeDerAuktion&AWPLZ=&AWBetrag=&AWBetragBezug=1&AWStammID=&AWLaenderkennung=&AWLaenderkennungBezug=rechnung&AWLabelDynSearchField1=ShippingAddress&AWDynSearchField1=&AWLabelDynSearchField2=AlterItemNumber1&AWDynSearchField2=&AWDynamicSorting=0&AWLabelDynSearchField3=AlterItemNumber&AWDynSearchField3=&searchUserTag1=0&searchUserTag2=0&searchUserTag3=0&searchUserTag4=0&killordersession=0&art=SetAuswahl'

download_dir = "C:\\Users\\Oli\\Documents"

options = webdriver.ChromeOptions()

driver = webdriver.Chrome()

driver.get(abURL)

cookies = pickle.load(open("cookies.pkl", "rb"))

for cookie in cookies:

    driver.add_cookie(cookie)

for tab in driver.window_handles:

    driver.switch_to.window(tab)

    try:

        tab_check = driver.find_element_by_id('lieferschein')

        # break

    except NoSuchElementException:

        pass

Answer 1

由于您正在使用except: pass，这会捕获所有可能的异常，一些发生的异常暂时被忽略，但稍后会默默地制造一个更难调试的问题。NoSuchElementException异常由 引发.find_element_by_id('anyID')，因此最好为 明确提及它except。try:&nbsp; &nbsp; tab_check = driver.find_element_by_id('lieferschein')&nbsp; &nbsp; # breakexcept NoSuchElementException:&nbsp; &nbsp; print('No element of that id present!')