selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH.
http://www.seleniumhq.org/download
1. selenium 3.x开始,webdriver/firefox/webdriver.py的__init__中,executable_path="geckodriver";而2.x是executable_path="wires"
2. firefox 47以上版本,需要下载第三方driver,即geckodriver;在http://docs.seleniumhq.org/download/的Third Party Drivers, Bindings, and Plugins下面找到Mozilla GeckoDriver,下载到任意电脑任意目录,解压后将该路径加入到PC的path(针对windows)即可。
作者:iceblue iceblue
链接:https://www.zhihu.com/question/49568096/answer/119324584
来源:知乎
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