以下代码使用非 headless Chrome 并且可以工作:
import os
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
chrome_options = Options()
chrome_options.add_argument("--headless")
chrome_options.add_argument('--start-maximized')
chrome_options.binary_location = 'C:\Program Files (x86)\Google\Chrome\Application\chrome.exe'
driver = webdriver.Chrome(executable_path=os.path.abspath("C:\User\Program Files\chrome-driver\chromedriver.exe"))
driver.set_window_size(1200, 600)
driver.get("login-url")
driver.find_element_by_id("loginId").send_keys("uname")
driver.find_element_by_id("newPassword").send_keys("pwd")
driver.find_element_by_name("submit-button").click()
driver.set_window_size(1200, 800)
WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.ID,"user-info")))
v = driver.find_element_by_xpath("//tr[4]/td[5]/span").text
print(v)
当我选择使用 headless chrome 时:
driver = webdriver.Chrome(executable_path=os.path.abspath("C:\User\Program Files\chrome-driver\chromedriver.exe"), chrome_options=chrome_options)
它抛出以下异常:
Traceback (most recent call last):
File "C:/User/workspaces/pyworkspaces/fin2/venv/process.py", line 28, in <module>
WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.ID,"user-info")))
File "C:\User\workspaces\pyworkspaces\fin2\venv\lib\site-packages\selenium\webdriver\support\wait.py", line 80, in until
raise TimeoutException(message, screen, stacktrace)
selenium.common.exceptions.TimeoutException: Message:
因此,在 headless Chrome 中,以下行似乎失败了:
WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.ID,"user-info")))
我还尝试了presence_of_element_ located
:
WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID,"user-info")))
但它仍然给出TimeOutException
。为什么会这样?
最佳答案
我过去所做的是添加参数“--start-maximized”:
chrome_options.add_argument('--start-maximized')
尝试一下希望对你有帮助!
关于python - 在 headless Chrome 中等待包含元素的网页时出现超时异常,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56682149/