What's the difference between Model.id and Model.pk in django?

Question

I saw the django documents use both sometimes? Are they identical? What's the difference and where is the reference? I only see documentation of pk.

BTW, does django reference cover all the methods of its classes?

Answer 1

pk is the attribute that contains the value of the primary key for the model. id is the name of the field created as a primary key by default if none is explicitly specified.