text: class BankAccount:
      def __init__(self, owner):
          self.owner = owner
          self.balance = 0.0
      
      def getBalance(self):
          return self.balance
      
      def deposit(self, amount):
          self.balance += amount
          return self.balance
          
      def withdraw(self, amount):
          self.balance -= amount
          return self.balance
  
  acct = BankAccount("Darcy")
  acct.owner #Darcy
  acct.balance #0.0
  acct.deposit(10)  #10.0
  acct.withdraw(3)  #7.0
  acct.balance  #7.0