http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world https://github.com/zookeepr/zookeepr/wiki/Creating-a-Development-Environment-with-pip-and-virtualenvhttps://github.com/zookeepr/zookeepr/wiki/Creating-a-Development-Environment-with-pip-and-virtualenv http://virtualenvwrapper.readthedocs.org/en/latest/