PIP: Comandos comunes

gistfile1.py

'''Crear archivo requirements.txt a partir de PIP FREEZE
    pip freeze > requirements.txt

Actualizar un paquete de PIP
    pip install --upgrade Django==1.4.2
    
Checar inconsistencias
    pip check

Instalar paquetes de requirements.txt
    pip install -r requirements.txt

Available decoder jpeg in django
    pip uninstall PIL
    sudo apt-get install libjpeg-dev
    sudo apt-get install zlib1g-dev
    sudo apt-get install libpng12-dev
    pip install PIL
    
Outside virtualenv but with no sudo on the server
    # https://pip.pypa.io/en/stable/user_guide/#user-installs
    pip install --user SomePackage
 
-------------- PYTHON 3 --------------

Correr pip en python 3.4 (Ubuntu casa)
    python3.4 -m pip -V