utils.py

def verify_string(input, name, max_length):
    if len(input) <= max_length:
        return input
    else:
        return (
            "Error",
            f"'{name}' needs to be shorter than {max_length}."
        )


def verify_int(input, name, max_size):
    try:
        number = int(input)
        if number <= max_size:
            return number
        else:
            line_break = '\n' if len(name) > 20 else ''
            return (
                "Error",
                f"'{name}'{line_break}needs to be smaller than {max_size}."
            )
    except ValueError:
        line_break = '\n' if len(name) > 20 else ''
        return (
            "Error",
            f"'{name}'{line_break}needs to be an integer value."
        )


def is_error(potential_error):
    return isinstance(potential_error, tuple) and potential_error[0] == "Error"