python-执行sql语句

# 比如 pgsql 
# 开源数据库都差不多, 导入对应的包就可以了
import psycopg2

conn = psycopg2.connect(database=self.db_database, user=self.db_user, password=self.db_password,host=self.db_host, port=self.db_port)

sql = '...'
with conn:
    cur = conn.cursor()
    cur.execute(f'{sql}')
    conn.commit()