I have followed the instruction from the site: http://selenium-python.readthedocs.org/en/latest/installation.html
I followed the section : Detailed instructions for Windows users:
completed step-1- by downloading and installing it (python-2.7.3.msi) to my windows . Now i got confuesd about the 2nd step. What i need to i can't understand ,i just downloaded the "pypa-virtualenv-1.8.1-74-g2adac08.tar.gz" and unzipped it to the folder "D:\Python and Selenium". Both the step-1 mentioned MSI .exe file and this .zip file present in the same directory as I just mentioned.
I also tried the below ,but got errors:
    Microsoft Windows [Version 6.1.7600]
    Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
    C:\Users\Arup Rakshit>cd..
    C:\Users>cd..
    C:\>d:
    D:\>cd D:\Python and Selenium\pypa-virtualenv-2adac08
    D:\Python and Selenium\pypa-virtualenv-2adac08>pip install https://github.com/py
   pa/virtualenv/tarball/develop
   'pip' is not recognized as an internal or external command,
    operable program or batch file.
    D:\Python and Selenium\pypa-virtualenv-2adac08>
Can you now guide me to install it on my PC succesfully?
UPDATE
  Microsoft Windows [Version 6.1.7600]
  Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
  C:\Users\Arup Rakshit>cd..
  C:\Users>cd..
  C:\>cd Python27
  C:\Python27>cd python.exe
 The directory name is invalid.
 C:\Python27>python.exe virtualenv.py selenv
  python.exe: can't open file 'virtualenv.py': [Errno 2] No such file or directory
 C:\Python27>
 C:\Python27>
 
    