TypeError: 'method' object is not iterable

from cards import Card
import random

class Game:
    def __init__(self):
        self.size = 4
        self.card_options = ['Egg', 'Cheese', 'Milk', 'Orange', 'Beans', 'Sugar', 'Celery', 'Ice']
        self.columns = ['A', 'B', 'C', 'D']
        self.cards = []
        self.locations = []
        for column in self.columns:
            for num in range(1, self.size + 1):
                self.locations.append(f'{column}{num}')

    #create new method 
        #keep track of used locations
                #pick one card
                      #pick another card
                        #to remove duplicate use set
                        #pick card at random
                        #pass word and it's location
    def set_cards(self):
        used_locations = []
        for word in self.card_options:
            for i in range(2):
                avaliable_locations = set(self.locations) - set(used_locations)
                random_location = random.choice(list(avaliable_locations))
                used_locations.append(random_location)
                card = Card(word, random_location)
                self.cards.append(card)


#Dunder main               
if __name__ == '__main__':
    game = Game()
    game.set_cards()
    for card in game.set_cards:
        print(card)

# method
    #creat card with word
    #creat grid
    #check for matches
    #check if the game have been won
    #run the game

#Dunder main
    #create game instance
    #call the start game