Using install_requires

[buran]

I didn't use PyGTK, but I think it should work.
As alternative you may decide to compile your code to executable, e.g. with pyinstaller

[ChrisOfBristol]

@buran Having had a quick look at Pyinstaller I get the impression it will only run on the OS and distribution it's compiled on. That's a bit restrictive.

I've already got a .deb source package that works, but the bureaucracy surrounding Debian packages sends me round in circles, so I've given up trying to get it into a Debian repository. It was on GetDeb until that went defunct. I am working on a Snap package and I believe Python apps have to be in the PyPi format with a setup.py.