pip install --upgrade pip

pip install --upgrade pip Collecting pip Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB) 100% |████████████████████████████████| 1.3MB 865kB/s Installing collected packages: pip Successfully installed pip-8.1.1 You are using pip version 8.1.1, however version 9.0.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command. 

~ pip -V pip 9.0.1 from /home/vagrant/.local/lib/python2.7/site-packages (python 2.7) 

 ~ python2 Python 2.7.12 (default, Nov 19 2016, 06:48:10) [GCC 5.4.0 20160609] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> 

➜ ~ python3 Python 3.5.2 (default, Sep 14 2017, 22:51:06) [GCC 5.4.0 20160609] on linux Type "help", "copyright", "credits" or "license" for more information. >>>