CookBook - master - gregkhar/files-homework

CookBook
60 строк2 KB
Barwolf
Completed homework
28 май 2026, 16:57
28 май 2026, 16:572d0590f

# Function for reading the content of a formatted .txt file with recipes
def read_recipes_file(file):
    try:
        with open(file, 'r', encoding='utf=8') as f:
            recipes = f.read()
            print(recipes)
    except FileNotFoundError:
        print("Файл не найден.")
    except ValueError:
        print("Неверный формат")

# Function for creating a cook book dictionary out of a formatted .txt file with recipes
def create_cook_book(file):
    cook_book = {}
    dish_name = ''
    ingredient = {}
    try:
        with open(file, 'r', encoding='utf=8') as f:
            for line in f.readlines():
                if line.strip() == '' or line.strip().isnumeric():
                    pass
                else:
                    if '|' not in line:
                        dish_name = line.strip()
                        cook_book.update({dish_name:[]})
                    else:
                        list = line.strip().split(' | ')
                        ingredient = {'ingredient_name':list[0], 'quantity':list[1], 'measure':list[2]}
                        cook_book[dish_name].append(ingredient)
        return cook_book
    except FileNotFoundError:
        print("Файл не найден.")
    except ValueError:
        print("Неверный формат")

# Creating a cook book from the file
cook_book = create_cook_book('recipes.txt')

# Function for creating a shopping list based on the created cook book. Attributes: 1. a list of dish names 2. a number of persons
def get_shop_list_by_dishes(dishes, person_count):
    shop_list = {}
    for dish in dishes:
        dish_ingredients = cook_book.get(dish)
        for i in dish_ingredients:
            ingredient_name = i.get('ingredient_name')
            if ingredient_name not in shop_list.keys():
                parameters = {'measure':i.get('measure'), 'quantity':(int(i.get('quantity'))*person_count)}
                shop_list.setdefault(ingredient_name, parameters)
            else:
                new_quantity = shop_list.get(ingredient_name)['quantity']+(int(i.get('quantity'))*person_count)
                parameters = {'measure':i.get('measure'), 'quantity':new_quantity}
                shop_list.update({ingredient_name:parameters})
    return shop_list

# Creating a shop list based on the cook book        
shop_list = get_shop_list_by_dishes(['Омлет', 'Фахитос'], 2)        

print(read_recipes_file('recipes.txt'), '\n')
print(cook_book, '\n')
print(shop_list)