在 Selenium Python 中检查网站的 .readyState 的正确语法是什么? [英] What is the correct syntax checking the .readyState of a website in Selenium Python?

问题描述

我正在尝试使用 .execute_script 检查网站的 .readyState，但我一直收到错误消息.

我在 chromedriver 中使用了none"的 pageLoadStrategy，所以我试图测试网站 readystate 不再加载".

注意:这个问题是特定于 Python 的.

WebDriverWait(driver, timeout=20).until(driver.execute_script('return document.readyState') == 'interactive')

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值=方法(self._driver)类型错误:str"对象不可调用

我也尝试过使用不会引发错误的 lambda，但是打印 readystate 将返回相互冲突的结果.

WebDriverWait(driver, timeout=20).until(lambda 驱动程序:driver.execute_script('return document.readyState') == 'interactive')打印(driver.execute_script('返回文档.readyState'))

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正在加载

解决方案

Using pageLoadStrategy as none 然后使用 WebDriverWait 对于 document.readyState 作为 interactive 不是一个好方法.您可以对 document.readyState 使用 pageLoadStrategy 或 WebDriverWait ，如下所示:

要将 pageLoadStrategy 配置为 None，您可以使用以下任一解决方案:

• 火狐:

  from selenium import webdriver从 selenium.webdriver.common.desired_capabilities 导入 DesiredCapabilitiescaps = DesiredCapabilities().FIREFOXcaps["pageLoadStrategy"] = "none"#caps["pageLoadStrategy"] = "eager" # 交互#caps["pageLoadStrategy"] = "normal" # 完成driver = webdriver.Firefox(desired_capabilities=caps, executable_path=r'C:\Utility\BrowserDrivers\geckodriver.exe')driver.get("http://google.com")

• Chrome:

  from selenium import webdriver从 selenium.webdriver.common.desired_capabilities 导入 DesiredCapabilitiescaps = DesiredCapabilities().CHROMEcaps["pageLoadStrategy"] = "none"#caps["pageLoadStrategy"] = "eager" # 交互#caps["pageLoadStrategy"] = "normal" # 完成driver = webdriver.Chrome(desired_capabilities=caps, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')driver.get("http://google.com")

使用 WebDriverWait 作为 eager 等待 document.readyState :

WebDriverWait(driver, 20).until(lambda driver: driver.execute_script("return document.readyState").equals("interactive"))

使用 WebDriverWait 等待 document.readyState 作为 normal :

WebDriverWait(driver, 20).until(lambda driver: driver.execute_script("return document.readyState").equals("complete"))

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您可以在 如何让 Selenium 不等到整个页面加载，它的脚本很慢?

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尾声

我们是否有任何通用函数来检查页面是否已在 Selenium 中完全加载

I'm trying to check the .readyState of a website using .execute_script but I keep getting an error.

I'm using a pageLoadStrategy of "none" in chromedriver so I'm trying to test that the websites readystate is no longer "loading".

Note: this question is Python-specific.

WebDriverWait(driver, timeout=20).until(
    driver.execute_script('return document.readyState') == 'interactive'
)

value = method(self._driver) TypeError: 'str' object is not callable

I've also tried using lambda which doesn't throw an error, however printing the readystate will return conflicting results.

WebDriverWait(driver, timeout=20).until(
    lambda driver: driver.execute_script('return document.readyState') == 'interactive'
)
print(driver.execute_script('return document.readyState'))

loading

解决方案

Using pageLoadStrategy as none and then using WebDriverWait for document.readyState as interactive won't be a good approach. You can use either pageLoadStrategy or WebDriverWait for document.readyState as follows:

To configure pageLoadStrategy as None you can use either of the following solutions:

• Firefox :

  from selenium import webdriver
  from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
  
  caps = DesiredCapabilities().FIREFOX
  caps["pageLoadStrategy"] = "none"
  #caps["pageLoadStrategy"] = "eager"  #  interactive
  #caps["pageLoadStrategy"] = "normal"  #  complete
  driver = webdriver.Firefox(desired_capabilities=caps, executable_path=r'C:\Utility\BrowserDrivers\geckodriver.exe')
  driver.get("http://google.com")
  

• Chrome :

  from selenium import webdriver
  from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
  
  caps = DesiredCapabilities().CHROME
  caps["pageLoadStrategy"] = "none"
  #caps["pageLoadStrategy"] = "eager"  #  interactive
  #caps["pageLoadStrategy"] = "normal"  #  complete
  driver = webdriver.Chrome(desired_capabilities=caps, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
  driver.get("http://google.com")
  

Using WebDriverWait to wait for document.readyState as eager:

WebDriverWait(driver, 20).until(lambda driver: driver.execute_script("return document.readyState").equals("interactive"))

Using WebDriverWait to wait for document.readyState as normal:

WebDriverWait(driver, 20).until(lambda driver: driver.execute_script("return document.readyState").equals("complete"))

You can find a detailed discussion in How to make Selenium not wait till full page load, which has a slow script?

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Outro

Do we have any generic function to check if page has completely loaded in Selenium

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