in postgresql_metrics/postgres_queries.py [0:0]
def get_db_connection(database, username, password, host='127.0.0.1', port=5432,
connect_timeout=10):
connection = psycopg2.connect(user=username,
password=password,
host=host,
port=int(port),
database=database,
connect_timeout=connect_timeout)
connection.autocommit = True
return connection