Selenium python+chrome/firefox报错Message: 'geckodriver' executable needs to be in PATH.

>>> from selenium.webdriver import Firefox

>>> driver = Firefox ()

 

执行脚本报错：

Traceback (most recent call last):

  File "/Users/xxx/Documents/selenium_py/inittest/test.py", line 3, in <module>

    dr = webdriver.Firefox()

  File "/Library/Python/2.7/site-packages/selenium/webdriver/firefox/webdriver.py", line 144, in __init__

    self.service.start()

  File "/Library/Python/2.7/site-packages/selenium/webdriver/common/service.py", line 81, in start

    os.path.basename(self.path), self.start_error_message)

selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH.

[Finished in 0.1s with exit code 1]

原因是使用的firefox版本是76.0，对于较高版本的firefox浏览器，需下载对应的驱动geckodriver。将下载的驱动放到自己需要的目录下。驱动地址：https://www.selenium.dev/documentation/en/webdriver/driver_requirements/#quick-reference

修改原脚本如下所示：

>>> from selenium.webdriver import Firefox

#添加path后执行

>>> driver = Firefox ()

或加驱动位置：

>>> from selenium.webdriver import Firefox

#将具体的驱动位置作为入参

>>> Firefox(executable_path='/usr/local/bin/geckodriver')