tabledef.py

from sqlalchemy import *
from sqlalchemy import create_engine, ForeignKey
from sqlalchemy import Column, Date, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship, backref

engine = create_engine('sqlite:///tutorial.db', echo=True)
Base = declarative_base()

###############################################################################################
class User(Base):
    """"""

    __tablename__ = 'users'

    id = Column(Integer, primary_key=True)
    username= Column(String)
    password= Column(String)


    def __init__(self, username, password):

        self.username= username
        self.password= password

# create tables
Base.metadata.create_all(engine)