from collections import defaultdict

# Example data: a list of dictionaries representing products
products = [
    {"id": 1, "category": "Electronics", "name": "Laptop"},
    {"id": 2, "category": "Books", "name": "Python Programming"},
    {"id": 3, "category": "Electronics", "name": "Smartphone"},
    {"id": 4, "category": "Books", "name": "Data Science Handbook"},
    {"id": 5, "category": "Home", "name": "Coffee Maker"}
]

# Group products by category using defaultdict
products_by_category = defaultdict(list)
for product in products:
    products_by_category[product["category"]].append(product)

# Print the grouped data
print("Grouped Products:")
for category, items in products_by_category.items():
    print(f"  {category}:")
    for item in items:
        print(f"    - {item['name']}")

# Accessing a specific category
print(f"
Electronics: {products_by_category['Electronics']}")