python mysql结果是否为空

import mysql.connector

# 连接数据库
try:
    conn = mysql.connector.connect(
        host="localhost",
        user="your_username",
        password="your_password",
        database="your_database"
    )
    cursor = conn.cursor()

    # 执行查询
    query = "SELECT * FROM your_table WHERE some_condition"
    cursor.execute(query)

    # 检查结果是否为空
    result = cursor.fetchall()
    if not result:
        print("查询结果为空")
    else:
        for row in result:
            print(row)

except mysql.connector.Error as err:
    print(f"数据库错误: {err}")
finally:
    if conn.is_connected():
        cursor.close()
        conn.close()