python连接pgsql demo

import psycopg2

try:
    host = "11.167.252.45"
    port = 3433
    account = "testacc"
    password = "wkl_test123"
    connect_timeout= 3
    options = "-c DateStyle=ISO"
    conn = psycopg2.connect(host=host,
                                    port=int(port),
                                    user=account,
                                    password=password,
                                    database='postgres',
                                    connect_timeout=connect_timeout,
                                    options=options)
    conn.autocommit = True
    cursor = conn.cursor()
    cursor.execute("/* rds internal mark */ select 1")
    result = cursor.fetchall()
    print(result)
except Exception as e:
    print(e)
finally:
    if conn:
        conn.close()