from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import Session
from sqlalchemy.orm import sessionmaker
from sqlalchemy import create_engine
from sqlalchemy import or_
from sqlalchemy import Column,Integer,String

class ORMsession:
    def __init__(self):
        engine = create_engine('mysql+pymysql://root:yyj0010YYJ@10.23.174.207/cloud',encoding="utf-8", echo=True)
        Session=sessionmaker(engine)
        self.db_session = Session()