Download Free Decision Review System in Python Using Tkinter GUI with Source code. Python Projects with Source code. Decision Review System is a simple project developed in Python. Decision Review System contains a Python Script (main.py). Decision Review System is a simple GUI based Desktop Application in Tkinter which is user Friendly and very easy to understand. User can control the system pause the video, slow and fast it and can easily can make the decision. This Project is very useful for educational purpose.