#!/usr/bin/env python2.7 from sqlalchemy import create_engine,event,exc from sqlalchemy.orm import scoped_session,sessionmaker from sqlalchemy.ext.declarative import declarative_base engine=create_engine('sqlite:///sqlite.db',convert_unicode=True) db_session=scoped_session(sessionmaker(autocommit=False,autoflush=True,bind=engine)) Base=declarative_base() Base.query=db_session.query_property() def init_db(): import models Base.metadata.create_all(bind=engine) if __name__=='__name__': init_db()