from sqlalchemy import * from entities import * db = create_engine('postgres://jan:heyyou97@localhost:5432/testdb') metadata = BoundMetaData(db) domains_table = Table('domains', metadata, autoload = True) sysuser_table = Table('sysuser', metadata, autoload = True) mailpassword_table = Table('mailpassword', metadata, autoload = True) client_table = Table('client', metadata, autoload = True) popaccountmapper = mapper(PopAccount, mailpassword_table) domainmapper = mapper(Domain, domains_table) domainmapper.add_property('popaccounts', relation(PopAccount)) sysusermapper = mapper(SysUser, sysuser_table) clientmapper = mapper(Client, client_table) clientmapper.add_property('sysusers', relation(SysUser)) session = create_session()