Learn to Program: Crafting Quality Code read_restaurants

def read_restaurants(file):
    """ (file) -> (dict, dict, dict)

    Return a tuple of three dictionaries based on the information in the file:


    Georgie Porgie
    87%
    $$$
    Canadian, Pub Food

    Queen St. Cafe
    82%
    $
    Malaysian, Thai

    Dumplings R Us
    71%
    $
    Chinese

    Mexican Grill
    85%
    $$
    Mexican

    Deep Fried Everything
    52%
    $
    Pub Food

    >>>read_restaurants('/Users/samantha/Desktop/Restaurant_List.txt')

    - a dict of {restaurant name: rating%}
    {'Georgie Porgie':87}
    - a dict of {price: list of restaurant names}
    {'$$$':[Georgie Porgie]}
    - a dict of {cusine: list of restaurant names}
    {'Canadian':'Georgie Porgie', 'Pub Food':'Georgie Porgie'}
    """
    #open file for reading only
    open_file = open(file, 'r')

    # lists to be completed by function
    name_to_rating = {}
    price_to_names = {'$': [], '$$': [], '$$$': [], '$$$$': []}
    cuisine_to_names = {}

    # read first line
    line = open_file.readline()

    #keep in while loop until the end of the file
    while line != '':

        #name of resturant variable
        name = line.strip('\n') #remove /n

        #Percent people like the resturant variable
        percent = open_file.readline().strip('%\n')

        #Add to dict. the name_to_rating key being name and the value being percent
        name_to_rating[name] = percent

        #How much it costs
        dollar = open_file.readline().strip('%\n')

        #Add value name to corresponding $ already present in dict.
        price_to_names[dollar].append(name)

        #kind_of_food the restaurant offers variable
        kind_of_food = open_file.readline().strip('%\n')

    # If statements are result of the resturant serving more than one type of food

        #If the resturant serves more than one type of food:
        if ',' in kind_of_food:
            food_types = kind_of_food.strip().split(', ')
            food_types.insert(1,name)
            food_types.insert(3,name)
            cuisine_to_names[food_types[0]] = list(food_types[1:2])
            cuisine_to_names[food_types[2]] = list(food_types[3:len(food_types)])

        #If the type of food served by this resturant is already present in dict.
        elif kind_of_food in cuisine_to_names:
            cuisine_to_names[kind_of_food].append(name)

        #If the resturant only offers one type of food and it is not already present in
        #the dict.
        else:
            cuisine_to_names[kind_of_food] = [name]


        empty_line = open_file.readline()
        line = open_file.readline()
    print(name_to_rating)
    print(price_to_names)
    print(cuisine_to_names)

    open_file.close()