Install the dependencies:
sudo apt-get install python-pip python-virtualenv gdal-bin postgresql-8.4-postgis postgresql-server-dev-8.4
Create PostGIS template and a spatially-enabled database:
sudo su - postgres
curl https://docs.djangoproject.com/en/dev/_downloads/create_template_postgis-debian.sh | bash
createuser -D -A -R -P lambdageo
createdb -T template_postgis -O lambdageo lambdageo
To get started create a virtualenv and install the dependencies with pip:
virtualenv --no-site-packages env
source env/bin/activate
pip install -r requirements.txt