My startup file when I launch vagrant.

startup_vagrant.bash

curl -O http://python-distribute.org/distribute_setup.py
sudo python distribute_setup.py
sudo easy_install pip
sudo pip install virtualenv
sudo pip install virtualenvwrapper
sudo apt-get install vim git-core subversion

cat > ~/.bashrc <<DELIM
# virtualenv
export WORKON_HOME=$HOME/.virtualenvs
source /usr/local/bin/virtualenvwrapper.sh

# virtualenv aliases
# http://blog.doughellmann.com/2010/01/virtualenvwrapper-tips-and-tricks.html
alias v='workon'
alias v.deactivate='deactivate'
alias v.mk='mkvirtualenv --no-site-packages'
alias v.mk_withsitepackages='mkvirtualenv'
alias v.rm='rmvirtualenv'
alias v.switch='workon'
alias v.add2virtualenv='add2virtualenv'
alias v.cdsitepackages='cdsitepackages'
alias v.cd='cdvirtualenv'
alias v.lssitepackages='lssitepackages'
DELIM