Bank Account

bank_account.py

class BankAccount():
	def withdraw():
		pass
	def deposit():
		pass
	
class SavingsAccount(BankAccount):
	def __init__(self):
		self.balance = 500
	
	def deposit(self, amount):
		if amount < 1:
			return "Invalid deposit amount"
		self.balance += amount
		return self.balance
	
	def withdraw(self, amount):
		if amount < 1:
			return "Invalid withdraw amount"
		if amount > self.balance:
			return "Cannot withdraw beyond the current account balance"
		if self.balance - amount < 500:
			return "Cannot withdraw beyond the minimum account balance"
		self.balance -= amount
		return self.balance
		
class CurrentAccount(BankAccount):
	def __init__(self):
		self.balance = 0
	
	def deposit(self, amount):
		if amount < 1:
			return "Invalid deposit amount"
		self.balance += amount
		return self.balance
		
	def withdraw(self, amount):
		if amount < 1:
			return "Invalid withdraw amount"
		if amount > self.balance:
			return "Cannot withdraw beyond the current account balance"
		self.balance -= amount
		return self.balance