seleniumをインストール

[vagrant@localhost python]$ pip3 install selenium
Collecting selenium
Downloading https://files.pythonhosted.org/packages/41/c6/78a9a0d0150dbf43095c6f422fdf6f948e18453c5ebbf92384175b372ca2/selenium-3.13.0-py2.py3-none-any.whl (946kB)
100% |████████████████████████████████| 952kB 552kB/s
Installing collected packages: selenium
Successfully installed selenium-3.13.0