En Ubuntu 16.04 cuando haces:
pip install --upgrade pip
usted obtiene:
Collecting pip
Using cached pip-8.1.2-py2.py3-none-any.whl
Installing collected packages: pip
Successfully installed pip-8.1.1
You are using pip version 8.1.1, however version 8.1.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Lo suficientemente justo. Ahora intenta
pip install --upgrade pip
y obtienes:
Collecting pip
Using cached pip-8.1.2-py2.py3-none-any.whl
Installing collected packages: pip
Successfully installed pip-8.1.1
You are using pip version 8.1.1, however version 8.1.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Entonces, ¿cómo obtener pip 8.1.2?
sudo -H pip install --upgrade pip
?