Possible short answer: "Check if you have initialized the Pygame library and created a display surface, and if your game loop is running and updating the screen properly."
Troubleshooting Pygame: Tips to Fix an Empty Window in Python Script
Pygame is a popular cross-platform game development module for Python programmers. However, the process of setting up your Pygame window can sometimes be a bit tricky, and you might encounter scenarios where your Pygame window appears empty or black.
Pygame Window Not Showing: Simple Solutions to Get Your Python Script Displaying
Are you having trouble getting your pygame script to display correctly? Don't worry, you're not alone. Many pygame beginners face this common issue.
Debugging Pygame Display Issues: A Guide to Fixing Python Scripts with Empty Windows
Pygame is a popular open-source library for Python that is used for developing games and multimedia applications. It provides a set of tools for handling images, sounds, fonts, and user input.