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19recipe_system.py
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19recipe_system.py
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# 19. Design a recipe management system with classes for recipes,
# ingredients, and users. Implement methods for adding recipes,
# searching by ingredients.
class Recipe:
def __init__(self, name, ingredients, instructions):
self.name = name
self.ingredients = ingredients
self.instructions = instructions
def contains_ingredient(self, ingredient_name):
return any(ingredient.lower() == ingredient_name.lower() for ingredient in self.ingredients)
class User:
def __init__(self, username):
self.username = username
self.recipes = []
def add_recipe(self, recipe):
self.recipes.append(recipe)
def main():
users = []
while True:
print("\nRecipe Management System")
print("1. Add User")
print("2. Add Recipe")
print("3. Search Recipes by Ingredient")
print("4. Exit")
choice = input("Enter your choice (1-4): ")
if choice == "1":
username = input("Enter username: ")
users.append(User(username))
print(f"User '{username}' added successfully!")
elif choice == "2":
if not users:
print("Please add a user first.")
continue
username = input("Enter your username: ")
user = next((u for u in users if u.username.lower() == username.lower()), None)
if user:
recipe_name = input("Enter recipe name: ")
ingredient_names = input("Enter ingredients (comma-separated): ").split(',')
instructions = input("Enter instructions: ")
ingredients = [name.strip() for name in ingredient_names]
recipe = Recipe(recipe_name, ingredients, instructions)
user.add_recipe(recipe)
print(f"Recipe '{recipe_name}' added successfully!")
else:
print(f"User '{username}' not found. Please add a user first.")
elif choice == "3":
if not users:
print("Please add a user first.")
continue
ingredient_name = input("Enter ingredient to search for: ")
found_recipes = []
for user in users:
for recipe in user.recipes:
if recipe.contains_ingredient(ingredient_name):
found_recipes.append(recipe)
if found_recipes:
print("\nFound Recipes:")
for recipe in found_recipes:
print(f"\nRecipe: {recipe.name}")
print("Ingredients:", ', '.join(recipe.ingredients))
print("Instructions:", recipe.instructions)
else:
print(f"No recipes found with the ingredient '{ingredient_name}'.")
elif choice == "4":
print("Exiting Recipe Management System. Goodbye!")
break
else:
print("Invalid choice. Please enter a number between 1 and 4.")
if __name__ == "__main__":
main()