class DataClass(object):
    @abstractmethod
    def aaa(self):
        raise NotImplemented
    @abstractmethod
    def bbb(self):
        raise NotImplemented
class Patient(DataClass, models.Model):
    name = models.TextField(
        help_text='姓名',
        verbose_name=_('姓名'), max_length=20, default='', )
    telecom = models.CharField(
        help_text='手机号码',
        verbose_name=_('手机号码'),
        max_length=20, default='', )
    def __str__(self):
        return self.name or _('ID is %s') % self.id
    def aaa(self):
        return aaa(str(self.id))
    def bbb(self):
        return 'hello'

在类中必须重写了aaa和bbb函数，Patient类才可以被实例化，否则无法创建实例化对象

参考

https://blog.csdn.net/study_in/article/details/84841957