SmartShop is a home inventory management system created by a group of engineers in a senior design group at Southern Illinois University Edwardsville (SIUE). The design was created over the Fall 2016 - Spring 2017 academic period. The application uses Python 3.5.2 with PyQt5 to create a GUI for users to interact with the SainSmart 7" touchscreen attached to a Raspberry Pi 3.
This started as my Project 3 for ECE 2524 - Intro to UNIX for Engineers, but I've been considering making something like this for a few years. (Note: It's not yet complete, but following the instructions in the header comments of the ElectronicsDesignApp.py should at least allow one to download, run, and interact with the base GUI widget.)