The Guide Shows You Step-by-Step How to Install/SetUp the Selenium Python Client with Webdriver and Chromedriver on Ubuntu 14.04 Trusty Tahr LTS Linux.
Selenium is a set of different software tools each with a different approach to supporting test automation.
There are Link to other articles showing Chromedriver Set-Up on Ubuntu Linux and the Getting-Started with Selenium Webdriver on Chrome Browser with Python.

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Open a Command Line Terminal Window
Ctrl+Alt+t
(Press “Enter” to Execute Commands). -
Check if Python Setuptools are Installed on Ubuntu.
which easy_install
If Not there then follow the Guide below
How to Install Required Python 2 Setuptools on Ubuntu -
Install the Selenium Python Client with Webdriver
sudo pip install selenium
If Got “User is Not in Sudoers file” then see: How to Enable sudo
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Installing Selenium Chromedriver
How to Install Chromedriver on Ubuntu Linux -
Quick-Start Guide Selenium Webdriver & Chromedriver on Python
Getting-Started Selenium Webdriver & Chromedriver on Python
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