This companion applicatoin to django SHOP provides an example of how shop implementors could implement a simple category system.
It is perfectly usable as a simple category system.
In basic setup, you can select products on category admin page. If you want to set categories in product admin page, subclass ProductWithCategoryForm, set Meta option model to your product model, and set this form as your product form:
from shop_simplecategories.admin import ProductWithCategoryForm class ProductForm(ProductWithCategoryForm): class Meta(object): model = Product class ProductAdmin(admin.ModelAdmin): form = ProductForm