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Computers and Technology, 09.05.2020 11:57 austinhamy1
Needed ingredients for recipes Before making a dish, we want to check whether we already have the necessary ingredients in our pantry or whether we need to go shopping. For this problem, you will implement a method needed_ingredients for the Pantry class. needed_ingredients takes a list of recipes as its argument and returns a new Pantry containing everything missing from our pantry to make all the recipes in the list. If our pantry already has all the necessary ingredients in the needed quantities, needed_ingredients returns an empty Pantry. There may be repeated recipes in the input list, and the input list may be empty. # You may wish to use defaultdict to implement needed_ingredients. from collections import defaultdict def needed_ingredients(self, recipes): "Given a list of recipes, computes which ingredients to buy, and in which quantity, to be able to make all recipes. Can be implemented in 10 lines of code."** #Code here raise Not ImplementedError()
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