def main():
list_of_students = []
operation_history = []
menu_option = [UI.add, UI.list_students, UI.filter, UI.undo]
UI.clear_screen()
Services.generate_entries(list_of_students, 10)
while True:
UI.print_options()
option = input("Enter an option: ")
UI.clear_screen()
try:
option = int(option)
if option < 0:
print("You have entered a negative value!\n")
continue
if option == 0:
return
menu_option[option - 1](list_of_students, operation_history)
except (ValueError, IndexError):
print("Enter an integer between 0 and 4!\n")
except Exception as e:
print(e)
