sqlalchemy连接 MySQL（转）

from sqlalchemy import create_engine,Table,Column,Integer,String,MetaData,ForeignKey
engine=create_engine("mysql+pymysql://root::3306/test",echo=True)
metadata=MetaData(engine)

user=Table(‘user‘,metadata,
    Column(‘id‘,Integer,primary_key=True),
    Column(‘name‘,String(20)),
    Column(‘fullname‘,String(40)),
    )
address_table = Table(‘address‘, metadata,
    Column(‘id‘, Integer, primary_key=True),
    Column(‘user_id‘, None, ForeignKey(‘user.id‘)),
    Column(‘email‘, String(128), nullable=False)
    )

metadata.create_all()