Install 3rd Party modules in Python( Ubuntu )

virtual_env.txt

There are three ways to install Python libraries:

(1) Use apt-get, aptitude or similar utilities.
(2) Use easy_install or pip (install pip first, its not available by default)
(3) If you download some .tar.gz file, unzip it and then type sudo python setup.py install
Manually messing with paths and moving files around is the first step to headaches later. Do not do it.

For completeness I should mention the portable, isolated way; that is to create your own virtual environment for Python.

(1) Run sudo apt-get install python-virtualenv
(2) virtualenv myenv (this creates a new virtual environment. You can freely install packages in here without polluting your system-wide Python libraries. It will add (myenv) to your prompt.)
(3) source myenv/bin/activate (this activates your environment; making sure your shell is pointing to the right place for Python)
(4) pip install _____ (replace __ with whatever you want to install)
(5) Once you are done type deactivate to reset your shell and environment to the default system Python.