DisplayStringsFromItemsDict.py

def create_displaystring_for_item_data(item_name: str, item_price: int, length_of_longest_item_name: int) -> str:
    """
    Helper function for the main function, get_displaystrings_from_items_dict().

    :param item_name                  : Name of this item, in string
    :param item_price                 : Price of this item, in int
    :param length_of_longest_item_name
    :return: Display string for this item
    """
    length_of_whitespace_after_item_name = 5 + length_of_longest_item_name - len(item_name)

    return ''.join((
        item_name,
        ' ' * length_of_whitespace_after_item_name,
        f'${item_price}/Year'
    ))


def get_displaystrings_from_items_dict(items_data_dict: dict[str, int]):
    """
    Given a dictionary that stores the basic data of an item: {item_name : item_price},
    this function returns a dictionary associating each item_name to a display string
    to be used in the shop user-interface.

    :param items_data_dict: A dictionary associating an item_name to an item_price
    :return: A dictionary associating an item_name to item_displaystring
    """
    displaystrings = {}

    # This is used by the helper-function
    length_of_longest_item_name = 0
    for item_name, item_price in items_data_dict.items():
        if len(item_name) > length_of_longest_item_name:
            length_of_longest_item_name = len(item_name)

    for item_name, item_price in items_data_dict.items():
        displaystrings[item_name] = create_displaystring_for_item_data(
            item_name,
            item_price,
            length_of_longest_item_name
        )

    return displaystrings


def run():
    sample_items_dict= {
        'Alfa-Romero Giulia': 13495,
        'Alfa-Romero Stelvio': 16500,
        'Alfa-Romero Quadrifoglio': 16500,
        'Audi 100 Ls': 13950,
        'Audi 100Ls': 17710
    }

    displaystrings = get_displaystrings_from_items_dict(sample_items_dict)

    for item_name, item_displaystring in displaystrings.items():
        print(item_displaystring)