pip et virtualenv
=================


installation 

::

    $ [sudo] pip install virtualenv
     
    
creation d'un environnement virtuel

::
  
    $ virtualenv ENV


activation


::

    $ source bin/activate

sous windows

::

    > \path\to\env\Scripts\activate


installation d'un package

::

    $ pip install requests
    Downloading/unpacking requests
      Downloading requests-1.1.0.tar.gz (337Kb): 337Kb downloaded
      Running setup.py egg_info for package requests

    Installing collected packages: requests
      Running setup.py install for requests

    Successfully installed requests
    Cleaning up...

Usage

::

    >>> import requests
    >>> requests.get('http://google.com')
    <Response [200]>

Sortir du venv: deactivate

Lister les packages

::

  (isen-p):~>pip freeze 
  requests==1.1.0 

Déploiement

1 : req (isen-p):~>pip freeze > requirements.txt

2: Install (isen-p):~>pip install -r requirements.txt