SQLite:有没有一种多行升级的方法？

import sqlite3

def execute_script(conn, script):
    cursor = conn.cursor()
    for line in script.split('\n'):
        if line.strip():  # 忽略空行
            cursor.execute(line)
    conn.commit()

def migrate_database(db_path):
    # 连接到 SQLite 数据库
    conn = sqlite3.connect(db_path)
    
    # 定义升级脚本
    upgrade_script = """
    CREATE TABLE IF NOT EXISTS users (
        id INTEGER PRIMARY KEY,
        name TEXT NOT NULL,
        email TEXT NOT NULL UNIQUE
    );
    
    ALTER TABLE users ADD COLUMN age INTEGER;
    """
    
    try:
        # 执行升级脚本
        execute_script(conn, upgrade_script)
        print("Database migration successful.")
    except sqlite3.Error as e:
        print(f"An error occurred: {e}")
    finally:
        conn.close()

# 使用示例
migrate_database('example.db')