如何自动添加数据到mysql数据库

from sqlalchemy import create_engine, Column, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

Base = declarative_base()

class User(Base):
    __tablename__ = 'users'
    id = Column(Integer, primary_key=True)
    name = Column(String)
    age = Column(Integer)

engine = create_engine('mysql+pymysql://username:password@localhost/dbname')
Base.metadata.create_all(engine)
Session = sessionmaker(bind=engine)
session = Session()

def add_user(name, age):
    new_user = User(name=name, age=age)
    session.add(new_user)
    session.commit()

# 自动添加数据
add_user('Alice', 30)
add_user('Bob', 25)