hemanth/gist:3070694

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    Creating a shared Python virtual environment

Install virtualenv/virtualwrapper:
sudo easy_install pip
sudo pip install virtualenvwrapper

Create a venv for libs you want to reuse in other venvs:
mkvirtualenv myglobals

Install some libs (here, IPython):
pip install ipython

Create a script for $VIRTUALENVWRAPPER_HOOK_DIR/postactivate (example: ~/Python/myglobals.sh):
echo '#!/bin/bash' >> ~/Python/myglobals.sh
echo "export PATH=\$PATH:$VIRTUAL_ENV/bin" >> ~/Python/myglobals.sh
echo add2virtualenv `virtualenvwrapper_get_site_packages_dir` >> ~/Python/myglobals.sh

Deactivate and create a venv for your project:
deactivate
mkvirtualenv myproject

Then add myglobals venv script in $VIRTUALENVWRAPPER_HOOK_DIR/postactivate:
echo 'source ~/Python/myglobals.sh' >> $VIRTUALENVWRAPPER_HOOK_DIR/postactivate

Deactivate and workon:
deactivate
workon myproject

You've done.