How to solve recursive model import problem in django?

Question

Django

You need to create a ForeignKey connection.
I'm importing a model from application 1 of application 2. But application 2 already imports some models from application 1.
make migrations throws an error when adding an import line to application 1.
What should I do in this case?
django 1.9

Answer 1

field = models.ForeignKey('app1.Model')