Step 1: Download virtualenv
Since you do not have super user priviledges, you need virtualenv in order to finish the installtion. You may download virtualenv.py by following command:
$ wget https://raw.github.com/pypa/virtualenv/master/virtualenv.py
Step 2: Install virtualenv
After you downloaded virtualenv, you can install it by following command:
$ python virtualenv.py --system-site-packages ENV
Step 3: Activate virtualenv
After installation of virtualenv, you can activate virtualenv by following command:
$ source ENV/bin/activate
Step 4 (optional): modify your rc file
Go to your home directory, log in your .bashrc, .bash_profile, or .bash_login file and add:
echo "source ENV/bin/activate" >> .bash_profile.This way you do not forget to type it in next time you login. Only do this if you are familar with .bash_profile.