Python psycopg2 timeout
When using the keyword arguments syntax to the connect function it is possible to use any of the libpd supported connection parameters. Among those there is connect_timeout in seconds:
db = psycopg2.connect ( host=dhost, database=ddatabase, user=duser, password=dpassword, connect_timeout=3)http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PARAMKEYWORDS
http://initd.org/psycopg/docs/module.html
A connection time out raises an OperationalError exception.