How to Getting Started With Python 2.X Virtualenv and Virtualenvwrapper on Ubuntu 15.04 Vivid Easy Guide

Python Virtualenv/Virtualenvwrapper Ubuntu Quick Start

Hi! The Tutorial shows you Step-by-Step How to Install and Getting-Started with Python 2.X Virtualenv and Virtualenvwrapper for Ubuntu 15.04 Vivid Vervet i386/amd64 Linux.

A Virtualenv Environment, put simply, is an isolated working copy of Python which allows you to work on a specific project without worry of affecting other projects.

The Virtualenvwrapper include wrappers for creating and deleting virtual environments and otherwise managing your development workflow, making it easier to work on more than one project at a time without introducing conflicts in their dependencies.

1. Open a Command Line Terminal Window
   Ctrl+Alt+t
   (Press “Enter” to Execute Commands)

   

   In case first see: Terminal QuickStart Guide.
   Or Login into Server Shell Shell…

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2. Installing Virtualenv+Virtualenvwrapper on Ubuntu.

   sudo su -c "apt-get install virtualenvwrapper"

3. Initial Virtualenv SetUp.

   nano $HOME/.bashrc

   Append:

   export WORKON_HOME=~/Envs

   Ctrl+x to Save & Exit from ‘nano’ Editor :)

   bash

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4. To Make a Python Virtual Environmnet.

   mkvirtualenv test

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5. To List All the Existing Virtual Environments.

   ls $WORKON_HOME

6. To Switch the Virtual Environmnet.

   mkvirtualenv essai

   workon test

   Show the Working Virtual Env:

   echo $VIRTUAL_ENV

7. To Install Software into the Virtual Environmnet.

   For Example:

   pip install django

8. To List All the Virtual Environmnet Packages.

   lssitepackages

9. To Automatically Run a Command after Environment Creation.

   echo '[bash-command]' > $WORKON_HOME/postactivate

   For Instance to Automatically Change to the New Env Directory:

   echo 'cd $VIRTUAL_ENV' > $WORKON_HOME/postactivate

10. To Automatically Installing Commonly Used Tools.

    echo 'pip install [myGoodTool]' > $WORKON_HOME/postmkvirtualenv

    For Example:

    echo 'pip install sphinx' > $WORKON_HOME/postmkvirtualenv