在 selenium 中不推荐使用 find_element_by_* 命令 [英] find_element_by_* commands are deprecated in selenium

问题描述

函数启动时

def 运行(驱动程序路径):driver = webdriver.Chrome(executable_path=driver_path)driver.get('https://tproger.ru/quiz/real-programmer/')button = driver.find_element_by_class_name("quiz_button")按钮.click()运行(驱动程序路径)

我收到如下错误:

<ipython-input-27-c5a7960e105f>:6: DeprecationWarning: executable_path has been deprecated, please pass in a Service objectdriver = webdriver.Chrome(executable_path=driver_path)<ipython-input-27-c5a7960e105f>:10: DeprecationWarning: find_element_by_* 命令已弃用.请改用 find_element()button = driver.find_element_by_class_name("quiz_button")

...但我不明白为什么.

我正在为我的 chrome 版本使用最新版本的 webdriver.我不明白我为什么会得到

`find_element_by_* 命令已弃用`

...当该命令存在于文档中时.

解决方案

这个错误信息...

DeprecationWarning: find_element_by_* 命令已弃用.请改用 find_element()

...暗示 find_element_by_* 命令在最新的 Selenium Python 库中已弃用.

作为@AutomatedTester 提及:这个DeprecationWarning 反映了对简化跨语言 API 的决定所做的更改，而这正是这样做的.

---

解决方案

您必须使用 find_element().举个例子:

<块引用><块引用>

您必须包含以下导入

from selenium.webdriver.common.by import By

• 使用 class_name:

  button = driver.find_element_by_class_name("quiz_button")

  需要替换为:

  button = driver.find_element(By.CLASS_NAME, "quiz_button")

---

在类似的行中，您还必须更改以下内容:

• 使用id:

  element = find_element_by_id("element_id")

  需要替换为:

  element = driver.find_element(By.ID, "element_id")

• 使用名称:

  element = find_element_by_name("element_name")

  需要替换为:

  element = driver.find_element(By.NAME, "element_name")

• 使用 link_text:

  element = find_element_by_link_text("element_link_text")

  需要替换为:

  element = driver.find_element(By.LINK_TEXT, "element_link_text")

• 使用 partial_link_text:

  element = find_element_by_partial_link_text("element_partial_link_text")

  需要替换为:

  element = driver.find_element(By.PARTIAL_LINK_TEXT, "element_partial_link_text")

• 使用 tag_name:

  element = find_element_by_tag_name("element_tag_name")

  需要替换为:

  element = driver.find_element(By.TAG_NAME, "element_tag_name")

• 使用 css_selector:

  element = find_element_by_css_selector("element_css_selector")

  需要替换为:

  element = driver.find_element(By.CSS_SELECTOR, "element_css_selector")

• 使用 xpath:

  element = find_element_by_xpath("element_xpath")

  需要替换为:

  element = driver.find_element(By.XPATH, "element_xpath")

When starting the function

def run(driver_path):    
    driver = webdriver.Chrome(executable_path=driver_path)    
    driver.get('https://tproger.ru/quiz/real-programmer/')    
    button = driver.find_element_by_class_name("quiz_button")
    button.click()
run(driver_path)

I'm getting errors like these:

<ipython-input-27-c5a7960e105f>:6: DeprecationWarning: executable_path has been deprecated, please pass in a Service object
  driver = webdriver.Chrome(executable_path=driver_path)
<ipython-input-27-c5a7960e105f>:10: DeprecationWarning: find_element_by_* commands are deprecated. Please use find_element() instead
  button = driver.find_element_by_class_name("quiz_button")

... but I can't understand why.

I'm using webdriver at the latest version for my chrome's version. I don't why I get

`find_element_by_* commands are deprecated` 

... when it's in the documentation that the command exists.

解决方案

This error message...

DeprecationWarning: find_element_by_* commands are deprecated. Please use find_element() instead

...implies that the find_element_by_* commands are deprecated in the latest Selenium Python libraries.

As @AutomatedTester mentions: This DeprecationWarning was the reflection of the changes made with respect to the decision to simplify the APIs across the languages and this does that.

---

Solution

Instead you have to use find_element(). As an example:

You have to include the following imports

from selenium.webdriver.common.by import By

• Using class_name:

  button = driver.find_element_by_class_name("quiz_button")
  

  Needs be replaced with:

  button = driver.find_element(By.CLASS_NAME, "quiz_button")
  

---

In similar lines you also have to change the following:

• Using id:

  element = find_element_by_id("element_id")
  

  Needs be replaced with:

  element = driver.find_element(By.ID, "element_id")
  

• Using name:

  element = find_element_by_name("element_name")
  

  Needs be replaced with:

  element = driver.find_element(By.NAME, "element_name")
  

• Using link_text:

  element = find_element_by_link_text("element_link_text")
  

  Needs be replaced with:

  element = driver.find_element(By.LINK_TEXT, "element_link_text")
  

• Using partial_link_text:

  element = find_element_by_partial_link_text("element_partial_link_text")
  

  Needs be replaced with:

  element = driver.find_element(By.PARTIAL_LINK_TEXT, "element_partial_link_text")
  

• Using tag_name:

  element = find_element_by_tag_name("element_tag_name")
  

  Needs be replaced with:

  element = driver.find_element(By.TAG_NAME, "element_tag_name")
  

• Using css_selector:

  element = find_element_by_css_selector("element_css_selector")
  

  Needs be replaced with:

  element = driver.find_element(By.CSS_SELECTOR, "element_css_selector")
  

• Using xpath:

  element = find_element_by_xpath("element_xpath")
  

  Needs be replaced with:

  element = driver.find_element(By.XPATH, "element_xpath")
  

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