WebDriverException:消息:无效参数:无法在Ubuntu上的Google Colab中使用Selenium GeckoDriver和Firefox杀死退出的进程错误

时间:2019-08-20 19:46:10

标签: python-3.x ubuntu selenium-webdriver google-colaboratory geckodriver

在上一篇文章(enter link description here)中,以下代码(由DebanjanB撰写)

# install firefox, geckodriver, and selenium
!apt-get update
!pip install selenium
!apt install firefox-geckodriver
!cp /usr/lib/geckodriver /usr/bin
!cp /usr/lib/firefox /usr/bin

from selenium import webdriver

binary = '/usr/bin/firefox'
options = webdriver.FirefoxOptions()
options.binary = binary
options.add_argument('start-maximized')
options.add_argument('--headless')
browser = webdriver.Firefox(firefox_options=options, executable_path='/usr/bin/geckodriver')
browser.get('http://google.com/')

这是正确的,导致版本问题。我不是 Ubuntu 的专家。

我使用Google Colaboratory,Python3.6,Selenium3.14。

WebDriverException                        Traceback (most recent call last)
<ipython-input-2-f7828de5f77c> in <module>()
      4 options.add_argument('start-maximized')
      5 options.add_argument('--headless')
----> 6 browser = webdriver.Firefox(options=options, executable_path='/usr/bin/geckodriver')
      7 driver.get("https://www.google.com")
      8 print(driver.page_source)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/firefox/webdriver.py in __init__(self, firefox_profile, firefox_binary, timeout, capabilities, proxy, executable_path, options, service_log_path, firefox_options, service_args, desired_capabilities, log_path, keep_alive)
    172                 command_executor=executor,
    173                 desired_capabilities=capabilities,
--> 174                 keep_alive=True)
    175 
    176         # Selenium remote

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py in __init__(self, command_executor, desired_capabilities, browser_profile, proxy, keep_alive, file_detector, options)
    155             warnings.warn("Please use FirefoxOptions to set browser profile",
    156                           DeprecationWarning, stacklevel=2)
--> 157         self.start_session(capabilities, browser_profile)
    158         self._switch_to = SwitchTo(self)
    159         self._mobile = Mobile(self)

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py in start_session(self, capabilities, browser_profile)
    250         parameters = {"capabilities": w3c_caps,
    251                       "desiredCapabilities": capabilities}
--> 252         response = self.execute(Command.NEW_SESSION, parameters)
    253         if 'sessionId' not in response:
    254             response = response['value']

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py in execute(self, driver_command, params)
    319         response = self.command_executor.execute(driver_command, params)
    320         if response:
--> 321             self.error_handler.check_response(response)
    322             response['value'] = self._unwrap_value(
    323                 response.get('value', None))

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/errorhandler.py in check_response(self, response)
    240                 alert_text = value['alert'].get('text')
    241             raise exception_class(message, screen, stacktrace, alert_text)
--> 242         raise exception_class(message, screen, stacktrace)
    243 
    244     def _value_or_default(self, obj, key, default):

WebDriverException: Message: invalid argument: can't kill an exited process

我在互联网上搜索后,才发现这是Firefox和Geckodriver之间的版本冲突。但是没有人提供解决方案如何选择兼容版本。这是我的问题。任何帮助表示赞赏。

1 个答案:

答案 0 :(得分:0)

在评论中进行了所有讨论之后,您似乎似乎错了下载 GeckoDriver 的命令,以及下载和/或安装 Firefox 时可能遇到的一些问题。


GeckoDriver

内安装的命令容易出错:

!apt install firefox-geckodriver

以下是详细步骤:

  • 浏览到geckodriver releases page。检查适用于您平台的 GeckoDriver 的兼容版本,并按以下方式下载:

    wget https://github.com/mozilla/geckodriver/releases/download/v0.24.0/geckodriver-v0.24.0-linux64.tar.gz
    
  • 使用以下方法提取文件:

    tar -xvzf geckodriver*
    
  • 使其可执行:

    chmod +x geckodriver
    
  • 将驱动程序添加到PATH,以便其他工具可以找到它:

    export PATH=$PATH:/path-to-extracted-file/.
    
  

参考:How to install geckodriver in Ubuntu?


Firefox

Firefox的所有受支持版本中始终提供最新版本的Firefox作为安全更新,并且将安装常规更新。您需要启用安全性或更新存储库(例如Software & Updates-> Updates)。您需要默认启用Security,但最好检查软件包管理器是否默认不更新Firefox。

您可以在以下位置找到详细步骤:

  

参考:How do I install the latest stable version of Firefox?


更新

Selenium Client Driver页面提到:

因此可能仍不支持 Python 3.7 ,您可能必须降级到相关版本。


Outro

SessionNotCreatedException: Message: Unable to create new service: ChromeDriverService with Selenium 3.14.0 and Python 3.7.3