class BankAccount(object):
	balance = 0
	def __init__(self, name):
		self.name = name
	def __repr__(self):
		return "Cuenta de %s. Balance: $%.2f" % (self.name, self.balance)
	def show_balance(self):
		print "Tu balance es: $%.2f " % (self.balance)
	def deposit(self, amount):
		if amount <= 0 :
			print "Ingrese una suma"
			return
		else:
			print "Se depositaron $%.2f" % (amount)
			self.balance += amount
			self.show_balance()
	def withdraw(self, amount):
		if amount > self.balance:
			return "El monto excede su saldo"
		else:
			print "Se retiraron $%.2f" % (amount)
			self.balance -= amount
			self.show_balance()

my_account = BankAccount("Tomas")

print my_account

print my_account.show_balance()

my_account.deposit(2000)
my_account.withdraw(1000)

print my_account