Python / Selenium，如果 'This site can’t be reached' 则执行其他操作

Question

我有一个测试一些代理的脚本，如果代理不工作，将显示页面 “无法访问此站点”，如果发生这种情况，我希望代码能够继续并使用不同的代理重试，但 selenium 仍然卡在“无法访问此站点”页面上。

我试了一个try/exept子句，但是selenium仍然停留在错误页面上，我也试了except TimeoutError，但还是卡住了。

代码：

from selenium import webdriver
from selenium.webdriver.common.proxy import Proxy, ProxyType
import time

proxy_ip_port = 'ip:port'

proxy = Proxy()
proxy.proxy_type = ProxyType.MANUAL
proxy.http_proxy = proxy_ip_port
proxy.ssl_proxy = proxy_ip_port

capabilities = webdriver.DesiredCapabilities.CHROME
proxy.add_to_capabilities(capabilities)

# replace 'your_absolute_path' with your chrome binary absolute path
driver = webdriver.Chrome('C:/chromedriver.exe', desired_capabilities=capabilities)

try:
    driver.get('https://www.tiktok.com/signup/phone-or-email/email')
except TimeoutError:
    print("Proxy: ", proxy_ip_port, "invalid")

输出：

C:\Users\fkahd\PycharmProjects\tkinter\venv\Scripts\python.exe C:/Users/fkahd/PycharmProjects/tkinter/proxy2.py
C:\Users\fkahd\PycharmProjects\tkinter\proxy2.py:17: DeprecationWarning: executable_path has been deprecated, please pass in a Service object
  driver = webdriver.Chrome('C:/chromedriver.exe', desired_capabilities=capabilities)

Process finished with exit code 0

---

“无法访问此站点”页面：

感谢您的帮助！

Answer 1

您可以指定页面加载超时值，并捕获 TimeoutException 类型。

我能够通过通用异常处理捕获失败（为了完整性我输入了一个环回代理...）：

from selenium import webdriver
from selenium.webdriver.common.proxy import Proxy, ProxyType
from selenium.common.exceptions import TimeoutException



proxy_ip_port = '10.27.0.0:80'

proxy = Proxy()
proxy.proxy_type = ProxyType.MANUAL
proxy.http_proxy = proxy_ip_port
proxy.ssl_proxy = proxy_ip_port

capabilities = webdriver.DesiredCapabilities.CHROME
proxy.add_to_capabilities(capabilities)

# replace 'your_absolute_path' with your chrome binary absolute path
driver = webdriver.Chrome()
driver.set_page_load_timeout(5)
try:
    driver.get('https://www.tiktok.com/signup/phone-or-email/email')
except TimeoutException:
    print("Proxy: ", proxy_ip_port, "invalid")