ATM machine (deposits/withdrawals) using OOP

[Drone4four]

How would you better formulate the try/except mechanism to catch transactions which don’t allow the user to go below $0.00?

To answer my own question, this seems to be an improvement and puts me closer to getting my ATM machine to behave as intended:

    def withdraw(self, balance, amount):
        if (balance - amount) <= 0:
            raise ValueError('Transaction declined. Insufficient funds. Deposit some money first.')
            withdraw(self, balance, amount)
        else:
            return balance - amount