python - 使用 Selenium 和 Python 从头开始​​使用 while 循环连接超时

Question

from selenium import webdriver
import time

browser = webdriver.Chrome('C:/Users/acer/Desktop/chromedriver')
browser.get('website')

def user():
    while True:
        time.sleep(1)
        try:
            browser.find_element_by_id('q').send_keys('name') #Type in name
            browser.find_element_by_tag_name('button').click()  #Click "verify"

        finally:
            browser.find_element_by_tag_name('button').click()  #When connection times out, click "try again"
user()      #When connection times out again run "while loop" from the begining

我想当连接再次超时时从头开始，并进行永无休止的循环，直到连接成功。

Answer 1

看来你已经接近完美了。为了演示“当连接再次超时时从头开始并进行永无止境的循环，直到连接成功”，这里有一个小程序，它执行以下操作:

• 打开网址 https://www.google.com/
• 找出元素By.NAME, "q"
• 清空字段
• 发送字符序列名称
• 尝试点击元素find_element_by_tag_name('button')
• 失败并使用继续继续重试。

• 代码块:

  from selenium import webdriver
  from selenium.webdriver.support.ui import WebDriverWait
  from selenium.webdriver.common.by import By
  from selenium.webdriver.support import expected_conditions as EC
  from selenium.common.exceptions import TimeoutException, WebDriverException
  
  options = webdriver.ChromeOptions() 
  options.add_argument("start-maximized")
  options.add_experimental_option("excludeSwitches", ["enable-automation"])
  options.add_experimental_option('useAutomationExtension', False)
  browser = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
  browser.get('https://www.google.com/')
  def user():
      while True:
          print("Starting while loop")
          try:
              element = WebDriverWait(browser, 20).until(EC.element_to_be_clickable((By.NAME, "q")))
              element.clear() #clear the previous text
              element.send_keys('name') #Type in name
              browser.find_element_by_tag_name('button').click()
          except (WebDriverException, TimeoutException):
              print("Go to while loop from the begining")
              continue
  user()
  

• 控制台输出:

  Starting while loop
  Go to while loop from the begining
  Starting while loop
  Go to while loop from the begining
  Starting while loop
  Go to while loop from the begining
  .
  .
  .
  

<小时/>

这个用例

您可以遵循类似的逻辑，您的有效代码块将是:

from selenium import webdriver
import time

browser = webdriver.Chrome('C:/Users/acer/Desktop/chromedriver')
browser.get('website')

def user():
    while True:
    time.sleep(1)
    try:
        browser.find_element_by_id('q').send_keys('name') #Type in name
        browser.find_element_by_tag_name('button').click()  #Click "verify"

    except WebDriverException:
        continue #When connection times out again run "while loop" from the begining
user()