Class Setup: Circular References

In lecture, we are going to explore how to set up dataclasses to manage bank accounts. We’ll assume that each customer of the bank can have only one account (for simplicity), but that an account can be shared by multiple people (to make things interesting).

We’ll need dataclasses for each of Accounts and Customers to support this scenario.

@dataclass

class Account:

id: int

balance: int

owners: list # of Customer

@dataclass

class Customer:

name: str

acct: Account

To prep for lecture, try to finish the following code example, which sets up a new account (id 15324) for a new customer (Kathi) with a balance of 150.

new_acct = Account(15324, 150, Customer("Kathi", __________))