In A7 you are to write a Python program to help process ordersat Amazin.com. The program will take orders for a multiple shoppingcarts and continue processing until the user indicates there are nomore carts to process. The user will be presented with a short menushowing a list of item categories selected as was done for A4.However, in this assignment the selection of a category will causea submenu of items to be displayed for user review and possibleselection. In addition to what was done for A4, A7 will include thefollowing features: 1. take orders for multiple shopping carts 2.present the user
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