如何点击 elements in an and elements with selenium using python? 列表

Question

我正在刮一个website。我试图点击<li>下的链接，但它抛出NoSuchElementException异常。

我要点击的链接：

我正在使用以下代码：

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--disable-dev-shm-usage')
chrome_options.add_argument('--start-maximized')
chrome_options.add_argument('window-size=5000x2500')
webdriver = webdriver.Chrome('chromedriver',chrome_options=chrome_options)
url = "https://www.cofidis.es/es/creditos-prestamos/financiacion-coche.html"
webdriver.get(url)
webdriver.find_element_by_xpath('//*[@id="btncerrar"]').click()
time.sleep(5)
webdriver.find_element_by_link_text('Préstamo Coche Nuevo').click()
webdriver.save_screenshot('test1.png')

我得到的错误：

/usr/local/lib/python3.6/dist-packages/ipykernel_launcher.py:10: DeprecationWarning: use options instead of chrome_options
  # Remove the CWD from sys.path while we load stuff.

---------------------------------------------------------------------------

NoSuchElementException                    Traceback (most recent call last)

<ipython-input-44-f6608be53ab3> in <module>()
     13 webdriver.find_element_by_xpath('//*[@id="btncerrar"]').click()
     14 time.sleep(5)
---> 15 webdriver.find_element_by_link_text('Préstamo Coche Nuevo').click()
     16 webdriver.save_screenshot('test1.png')

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py

in find_element_by_link_text（self，link_text）426 element = driver.find_element_by_link_text（'Sign In'）427“”“ - > 428 return self.find_element（by = By.LINK_TEXT，value = link_text）429 430 def find_elements_by_link_text（self，text ）：

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py

在find_element（self，by，value）中976返回self.execute（Command.FIND_ELEMENT，{977'使用'：by， - > 978'value'：value}）['value'] 979 980 def find_elements（self， by = By.ID，value = None）：

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py

in execute（self，driver_command，params）319 response = self.command_executor.execute（driver_command，params）320 if response： - > 321 self.error_handler.check_response（response）322 response ['value'] = self._unwrap_value（ 323 response.get（'value'，None））

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/errorhandler.py

in check_response（self，response）240 alert_text = value ['alert']。get（'text'）241 raise exception_class（message，screen，stacktrace，alert_text） - > 242 raise exception_class（message，screen，stacktrace）243 244 def _value_or_default（self，obj，key，default）：

NoSuchElementException: Message: no such element: Unable to locate element: {"method":"link text","selector":"Préstamo Coche Nuevo"}
  (Session info: headless chrome=72.0.3626.121)
  (Driver info: chromedriver=72.0.3626.121,platform=Linux 4.14.79+ x86_64)

Answer 1

你可以简单地抓住那个网址并进入它。此外，值得注意的是，你有一个基本网址，你可以简单地添加连字符搜索字符串，即financiar-viaje到https://www.cofidis.es/es/creditos-prestamos/基地

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

url = 'https://www.cofidis.es/es/creditos-prestamos/financiacion-coche.html'
driver = webdriver.Chrome()
driver.get(url)
url =  WebDriverWait(driver,10).until(EC.presence_of_element_located((By.CSS_SELECTOR, "[href*='financiar-viaje']"))).get_attribute('href')
driver.get(url)

Answer 2

使用下面的代码点击链接

webdriver.find_element_by_css_selector("#ei_tpl_navertical li>a[data='16736']").click()

使用隐式/显式等待来确保您的元素已准备好进行交互。在你的情况下：

webdriver = webdriver.Chrome('chromedriver',chrome_options=chrome_options)
url = "https://www.cofidis.es/es/creditos-prestamos/financiacion-coche.html"
webdriver.get(url)
webdriver.implicitlyWait(20)
webdriver.find_element_by_id('btncerrar').click()
time.sleep(5)
webdriver.find_element_by_css_selector("#ei_tpl_navertical li>a[data='16736']").click()
webdriver.save_screenshot('test1.png')