问在python中使用teradatasql时，如何解决连接池handle =1错误？

EN

import teradatasql
import os
def refresh_table():
    usr = ****1
    with open(f'C:\\Users\\{usr}\\Documents\\my_td_password.txt', 'r') as my_pwd_f:
        pw = my_pwd_f.read()
    with teradatasql.connect(host = '*******2'
    , user = usr
    , password = pw
    ,  ) as con:
        with con.cursor() as cur:
            with open('C:\\Users\\****1\\Documents\\test.sql', 'r') as my_sql:
                sql_script = my_sql.read()
                for sql_block in sql_script.split(';'):
                    try:
                        cur.execute(sql_block)
                        print("Block executed")
                    except ValueError:
                        print("Failure to execute block: ValueError")
                    finally:
                        print(sql_block)
                my_sql.close()
                print("SQL file closed")
        con.close()
        print("Connection closed")

refresh_table()