models of my flask app

models.py

from flask import Flask
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.config.from_object('config.DevelopmentConfig')
db = SQLAlchemy(app)

class User(db.Model):
    __tablename__ = 'users'

    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(255), unique=True, nullable=False)
    password = db.Column(db.String(255), unique=True, nullable=False)

    def __init__(self, email, password):
        self.email = email
        self.password = password

    def __repr__(self):
        return "<User (email='%r', password='%r')>" % (self.email, self.password)