I tried to build a simple Python IDE for kids using CustomTkinter. I wanted a clean layout with a code editor, file explorer, and a run button that doesn’t freeze the app. I also wanted to translate scary Python errors into simple English and add a lesson system with badges.I managed to do it by using the threading module to run code in the background. I used standard tkinter Text widgets for the code editor so I could add syntax highlighting and line numbers. For the errors, I wrote a helper script that uses regex to find common mistakes and prints friendly hints. The lessons and badges are stored in a local JSON file.I will modify it in the future. Right now the input function doesn’t work because of the background thread, so I want to fix that. I also plan to add more templates and maybe drag and drop file support.