test.py

from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
#from iso8583_web.models import Base
from sqlalchemy.ext.declarative import declarative_base
from zope.sqlalchemy import ZopeTransactionExtension
from sqlalchemy.orm import (
        sessionmaker,
        scoped_session,
        )
Base=declarative_base()
DBSession = DBSession = scoped_session(
            sessionmaker(extension=ZopeTransactionExtension()))
url = 'postgresql://samsat_banten:2m~k13@localhost:5432/samsat_banten' 
engine = create_engine(url)
Base.metadata.bind = engine
Base.metadata.create_all()