525642022/python_swapFace — reverse-engineered prompt

Build me a simple Python face swap app. I want to open it, choose two photos, have the app find the faces, swap them, and show me the result before I save it. It should also work for a couple photo where there are two people in the same image and I want their faces swapped with each other.

Keep it easy to use, with a small desktop window, buttons for choosing images, running the swap, resetting, and saving the final picture. If face detection fails, show a friendly message instead of crashing. Use the face landmark model that’s included in the project if that’s the right approach, and make the output look as natural as possible with basic color matching and blending.

Please clean up the project into a runnable version, remove confusing test code if it isn’t needed, and add simple instructions so I can install the requirements and start the app.