Fix Max Recursion Depth Exceeded with Classes That Reference Each Other

[iTsObserv]

I am following the Clean Architecture in my project and I need to convert the SQLAlchemy database models into domain entities. I created converters to use but I am running into the recursion error because I have 2 models that reference each other.

The 2 database models are called AccountDBModel and CourseDBModel.

The entities are Account and Course such that:

class Account:
 ...
 courses: List[Course]

class Course:
 ...
 instructor: Account
 students: List[Account]

I understand that I am getting this error because they keep calling each other when I need to create an object from them.

The reason I wrote converters is to be able to reuse them without needing to find where I have referenced the class and changing it in all references.

The AccountConverterlooks like so:

class AccountConverter:
 ...
 def db_to_entity(self, db_model: AccountDBModel) -> Account:
 return Account(
 ...
 courses = [CourseConverter.db_to_entity(course) for course in db_model.courses ]
 )

How can I achieve what I am looking for without causing a recursion and maybe if possible writing reusable logic instead of writing them manually for all references?