generate grocery shopping list for a bunch of recipes #food

recipes.py

import json
import yaml


def parse_recipe(recipe, all_ingredients):
    for recipe_name, ingredients in recipe.items():
        for ingredient in ingredients:
            ingredient_name, amount, unit = ingredient
            try:
                all_ingredients[ingredient_name]['amount'] += amount
            except KeyError:
                all_ingredients[ingredient_name] = dict()
                all_ingredients[ingredient_name]['amount'] = amount
            all_ingredients[ingredient_name]['unit'] = unit
    return all_ingredients


with open("recipes.yml", "r") as handle:
    data = yaml.load(handle.read())

all_ingredients = dict()
for recipe in data:
    all_ingredients = parse_recipe(recipe, all_ingredients)

print(json.dumps(all_ingredients, indent=4))