Download Free Complaint Management System in Python Using Tkinter GUI with Source code. Python Projects with Source code. Complaint Management System is a simple project developed in Python. Complaint Management System contains Python Scripts (main.py, db.py, listComp.py). This Project Contains Database. Complaint Management System is a simple GUI based Desktop Application in Tkinter which is very easy to understand and use. There is just a admin side in this project and user manages all its functionalities including adding and veiwing complaint lists. There is no Login System in this Project. This Project is very useful for educational purpose.