LU02.L03 - Klassendiagramm "BankAccount" umsetzen

bank_account.py

""" Module providing a bank account"""
 
 
class BankAccount:
    """
    A bank account.
 
    Attributes
    ----------
    balance: float
        current balance of the bank account
    overdraft: float
        the maximum overdraft amount
    customer: Customer
        the customer this account belongs to
 
    Methods
    -------
    booking(self, amount):
        adds the amount to the current balance
    get_money(self, amount):
        withdraws the amount from the balance if possible
    """
 
    def __init__(self, max_overdraft, customer):
        """Constructs a BankAccount object."""
        self._balance = 0.0
        self._overdraft = max_overdraft
        self._customer = customer
 
    @property
    def balance(self):
        """
        Gets the current balance.
 
        :return: The current balance(float)
        """
        return self._balance
 
    @property
    def overdraft(self):
        """
        Gets the overdraft amount.
 
        :return: The overdraft amount(float)
        """
        return self._overdraft
 
    @property
    def customer(self):
        """
        Gets the customer this bankaccount belongs to.
 
        :return: The customer object(Customer)
        """
        return self._customer
 
    def booking(self, amount):
        """
        Adds an amount to the balance.
 
        :param amount: (float): The amount to add
        """
        self._balance += amount
 
    def get_money(self, amount):
        """
        Withdraws some money if possible.
 
        :param amount: (float): The amount to add
        """
        if (self._balance + self._overdraft) > amount:
            self._balance -= amount
            return amount
        return 0.0

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René Probst, bearbeitet durch Marcel Suter