Django Meta class Inheritance for multiple abstract class

Django Internals
1

I was following the Django docs for Model Inheritance. There was a line: To inherit Meta options from multiple abstract base classes, you must explicitly declare the Meta inheritance, But it is not working. It is extending the Meta attributes in the Model class’s meta attribute but when I am accessing Meta on the child model class then it gives me the options from the first parent base class which is CommonInfo in this case. It is happening because we are extracting the Model class’s own attributes like its own Meta in django.db.models.Model metaclass ModelBase.

from django.db import models

class CommonInfo(models.Model):
    name = models.CharField(max_length=100)
    age = models.PositiveIntegerField()

    class Meta:
        abstract = True
        ordering = ["name"]

class Unmanaged(models.Model):
    class Meta:
        abstract = True
        managed = False

class Student(CommonInfo, Unmanaged):
    home_group = models.CharField(max_length=5)

    class Meta(CommonInfo.Meta, Unmanaged.Meta):
        pass

When I am accessing Student.Meta.managed, it will give AttributeError: type object 'Meta' has no attribute 'managed'

4

During model creation, in ModelBase.__new__(), the Meta class is converted into a model options object, stored and accessible at _meta.

>>> from example.models import Student
>>> Student.Meta.managed
Traceback (most recent call last):
  File "<console>", line 1, in <module>
AttributeError: type object 'Meta' has no attribute 'managed'
>>> Student._meta.managed
False

See the Model _Meta API docs for details.