ATM machine (deposits/withdrawals) using OOP

[knackwurstbagel]

Try these two functions I made to help you understand

def is_dunder(property):
    return True if property[:2] == '__' else False

def print_properties(obj):
    [print(prop) for prop in dir(obj) if not is_dunder(prop)]

Create your instances in the repl BA and time_instance in your case and pass them to print_properties() to see what sorts of properties each instance has. To explain the code, its simple is_dunder simply checks the first two characters of property to see if they are '__' and returns a boolean. print_properties(obj) takes a instance object and prints each of the properties if they are not dunders.

This may help you understand.