# pip install virtualenv
WARNING: Running pip install with root privileges is generally not a good idea. Try `pip install --user` instead.
Collecting virtualenv
  Downloading https://files.pythonhosted.org/packages/7c/17/9b7b6cddfd255388b58c61e25b091047f6814183e1d63741c8df8dcd65a2/virtualenv-16.1.0-py2.py3-none-any.whl (1.9MB)
    100% |████████████████████████████████| 1.9MB 598kB/s
Installing collected packages: virtualenv
Successfully installed virtualenv-16.1.0
You are using pip version 9.0.1, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.