Since Linux users will likely be familiar with command-line tools and most distributions will come with Python and pip installed already. Using pip is the recommended method for distributing your Python applications.
If you do not wish to use pip, there are many alternatives available, depending on the particular distribution the user is running.
For steps to create an AppImage binary, check out the official AppImages GitHub repository. There's a sample Python application available here: https://github.com/AppImage/AppImages/blob/master/legacy/pythongtk3hello/Recipe.
This sample contains the shell commands which need to be run in order to package your application as an AppImage. Before following the instructions, you will need a thumbnail ...