How To Set up Python Development Environment – Ubuntu 14.04

Python is already installed in Ubuntu. and check what version installed in it.

$ python -V

Install needed package for python development

$ sudo apt-get install build-essential python-dev libsqlite3-dev libreadline6-dev libgdbm-dev zlib1g-dev libbz2-dev sqlite3 zip

Install python3

$ sudo apt-get install python3 python3-dev

Enable easy_install

To use easy_install you need to install setuptools. setuptools is not maintained so then instead of it, distribute take the place of it. but now setup tool is updated. if you want to know more check official site 

$ mkdir ~/src

Download setup file.

$ wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py

Execute it and start install

$ sudo python ez_setup.py

Install pip

After enabling easy_install, install pip next. What is pip? check document 

$ sudo easy_install pip

Install virtualenv and virtualenvwrapper

Virtualenv enables you to make different environment with version python or combination of package. virtualenv 

$ sudo pip install virtualenv virtualenvwrapper

Setting for virtualenvrapper

$ vim ~/.bashrc

~/.bashrc

if [ -f /usr/local/bin/virtualenvwrapper.sh ]; then
    export WORKON_HOME=$HOME/.virtualenvs
    source /usr/local/bin/virtualenvwrapper.sh
fi

$ source ~/.bashrc

Now you can make virtual python environment easily.

mkvirtualenv : make virtualenv

$ mkvirtualenv work

In virtualenv, its name is at the head of prompt and you can use pip freely in it.

(work)webees@ubuntu:~$ pip install Django

Freeze : confirm what packages are installed

(work)webees@ubuntu:~$ pip freeze
Django==1.6
argparse==1.2.1
wsgiref==0.1.2

Deactivate : get away from virtualenv

(work)webees@ubuntu:~$ deactivate

virtualenv with python3

Confirm the path to python3

$ which python3
/usr/bin/python3

Set path with -p option

$ mkvirtualenv -p /usr/bin/python3 python3

(python3)webees@ubuntu:~$ python -V
Python 3.2.3

Workon : switch virtualenv or confirm its exist.

$ workon 
python3
work

Rmvirtualenv : remove virtualenv

$ rmvirtualenv work

Done