Миграция от Антона

gistfile1.txt

def upgrade(migrate_engine):
   # Upgrade operations go here. Don't create your own engine; bind
   # migrate_engine to your metadata
   metadata = MetaData(bind=migrate_engine)

   user = Table('user', metadata,
       Column('user_id', Integer, primary_key=True),
       Column('user_name', String(16), nullable=False),
       Column('email_address', String(60), key='email'),
       Column('password', String(20), nullable=False)
   )

   user.create()