menu_count

def read_menus(food_cat, *menus):
    """Return a string that summarized amount of items from the same category
    in the menus.
    >>> read_menus("food_cat.txt", "menu1.txt", "menu2.txt")
    'There are 7 burgers, 4 salads and 5 desserts'
    """

    categories = {}
    counts = {}

    for dish, cat in map(lambda x: x.split(': '), open(food_cat).read().strip().splitlines()):
        categories[dish] = cat

    for m in menus:
        for dish, _ in map(lambda x: x.split(': '), open(m).read().strip().splitlines()):
            counts[categories[dish]] = 1 + counts.setdefault(categories[dish], 0)

    return 'There are {Burger} burgers, {Salad} salads and {Desert} desserts'.format_map(counts)


if __name__ == '__main__':
    print(read_menus('./food_cat.txt', './menu1.txt', './menu2.txt'))