前言
本来准备装Selenium+PhantomJS的，但是Selenium已经停止支持，果断更换Chrome.
/usr/local/lib/python3.6/site-packages/selenium/webdriver/phantomjs/webdriver.py:49: UserWarning: Selenium support for PhantomJS has been deprecated, please use headless versions of Chrome or Firefox instead
warnings.warn('Selenium support for PhantomJS has been deprecated, please use headless '安装Python3+Pip3
yum install -y python3-devel python3 python3 -V Python 3.6.8 pip3 -V pip 9.0.3 from /usr/lib/python3.6/site-packages (python 3.6)
注：pip3已和python3捆绑安装