stephenmcd/cartridge — pull request #74 by emilepetrone (2012-12-08 10:43:59+00:00)
Title: Try except around request.cart.delete() on Order.complete()

I'm not exactly sure how this happens but it isn't the first time. Just got: "AttributeError: 'EmptyCart' object has no attribute 'delete' when a user was completing an order. The cart is already empty once the user reaches this point.