python pymysql 刪除指定數據庫中的數據表

import pymysql

db = pymysql.connect(
    host='127.0.0.1',
    db='diag',
    user='root',
    passwd='root',
    charset='utf8',
    use_unicode=True
)

cursor = db.cursor()

sql = 'show tables from diag'
rows = cursor.execute(sql)  # 返回執行成功的結果條數
print(f'一共有 {rows} 張表')
for d in cursor.fetchall():
    name: object = d[0]
    # print(name)
    if "msg" in name:
        sql = "DROP TABLE IF EXISTS {}".format(name)
        try:
            cursor.execute(sql)
            print('table：{}--已被刪除'.format(name))
        except Exception as e:
            print(e)