How to install PostgreSQL module for Python

How to install psycopg2?

On Ubuntu Linux (9.04):
sudo apt-get install python-psycopg2

On Mac OS X (Leopard) - valid for PostgreSQL 8.4:
export PATH="/Library/PostgreSQL/8.4/bin:$PATH"
sudo easy_install -U setuptools
sudo easy_install psycopg2

In case of problems, install PostgreSQL first. Don't know how? Don't worry, it is pretty straightforward. For example on Linux, but also on Mac OS X or Windows.