bug宝典Python篇 no 'moz:firefoxOptions.binary' capability provided

叁歲伎倆 2022-06-13 05:06 131阅读 0赞

from selenium import webdriver
    driver = webdriver.Firefox()
    driver.get('https://www.baidu.com')

简单的三句话，却启动不了firefox，还提示下面的错误

Traceback (most recent call last):
      File "F:\pythonwork\craw_demo\six\firefox_demo1.py", line 8, in <module>
        driver = webdriver.Firefox()
      File "D:\Python27\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 152, in __init__
        keep_alive=True)
      File "D:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 98, in __init__
        self.start_session(desired_capabilities, browser_profile)
      File "D:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 188, in start_session
        response = self.execute(Command.NEW_SESSION, parameters)
      File "D:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 256, in execute
        self.error_handler.check_response(response)
      File "D:\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
        raise exception_class(message, screen, stacktrace)
    selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

解决方案  
1. [mozilla/geckodriver][mozilla_geckodriver]中下载最新的geckodriver.exe,替换`$PYTHON_HOME/`  
2. 虽然我的firefox 不是安装在C盘，但是没有配置环境变量，亦然可以正确的运行出界面。  
3. 升级`pip install --upgrade selenium`

[mozilla_geckodriver]: https://github.com/mozilla/geckodriver/releases