Question

selenium启动火狐浏览器打开百度首页，报错

火狐版本47.0.2，selenium是3.0.2
Traceback (most recent call last):
File "D:/untitled/13.py", line 5, in <module>
driver = webdriver.Firefox()
File "D:\Program Files (x86)\Python2.7\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 150, in __init__
keep_alive=True)
File "D:\Program Files (x86)\Python2.7\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__
self.start_session(desired_capabilities, browser_profile)
File "D:\Program Files (x86)\Python2.7\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 180, in start_session
self.session_id = response['sessionId']
KeyError: 'sessionId'

Answer 1

pip install -U selenium

更新一下selenium
如果当前目录下有selenium目录，请更新一下，或删除掉
更新geckodriver.exe

Answer 2

python2是可以这样解决，但是python3不行