如何独立使用django的models

import sys
import os

pwd = os.path.dirname(os.path.realpath(__file__))

sys.path.append(pwd+"../")
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "项目名称.settings")

import django
django.setup()

from models import model类

model类.objects.all()
user = model()
user.username = 'zhangsir'
user.password = '123456'
user.save()