I developed a Python script on Raspberry Pi 3 Model B+, which runs on a Raspbian operating system. I would like my application to start by double clicking on a desktop icon. However this should work without needing the application source file. As happens when C programs are compiled, for example.
I think pyinstaller library can help you there. I found a few guides, this one seems to be achieving what you are looking for: https://www.geeksforgeeks.org/convert-python-script-to-exe-file/