DAO3/main.py

import psycopg2

connection = psycopg2.connect(
    user="postgres",
    host="192.168.10.102",
    port="5433",
    database="abs"
    )
try:
    cursor = connection.cursor()
    cursor.execute("SELECT version();")
    record = cursor.fetchone()
    print("You are connected to - ", record, "\n")

except (Exception, psycopg2.Error) as error:
    print("Error while connecting to PostgreSQL", error)
finally:
    if connection:
        cursor.close()
        connection.close()
        print("PostgreSQL connection is closed")