class Shoes:

def __init__(self, name, price) -> None:

self.name = name

self.price = price

def budget_check(self, budget):

if not isinstance(budget, (int, float)):

print("Invalid entry. Please enter a number.")

exit()

def change(self, budget):

return (budget - self.price)

def buy(self, budget):

self.budget_check(budget)

if budget>= self.price:

print(f"You can cop some {self.name}")

if budget == self.price:

print("You have exactly enough money for these shoes.")

else:

print(f"You can buy these shoes and have ${self.change(budget)} left over.")

exit("Thanks for using our shoe budget app!")

# print(f"You don't have enough budget for {self.name}.")