Problem solved: # Download : hg clone https://web2py.googlecode.com/hg/ web2py# Follow the instructions:
Title : Using psycopg2 with virtualenv on UbuntuLink: http://www.saltycrane.com/blog/2009/07/using-psycopg2-virtualenv-ubuntu-jaunty/ Check your syntax : # *db* = *DAL*('*postgres*://myself:mypass@127.0.0.1:5432/mydatabase') Enjoy it! Now, do we have to migrate web2py database and reimport it again? : Short tutorial to migrate web2py database - model and data<http://alexandremas.blogspot.com/2009/11/short-tutorial-to-migrate-web2py.html>