Writing a program to become a well-behaved Unix daemon is somewhat complex and tricky to get right, yet the steps are largely similar for any daemon regardless of what else the program may need to do.
This PEP introduces a package to the Python standard library that provides a simple interface to the task of becoming a daemon process.

Suppose you are running a Python systemd service that opens some file descriptors (these can be regular files, named pipes, sockets, and so on). When the service is stopped, it needs to finish cleanly by closing and/or removing the associated resources. This post presents two manners in which the service may be stopped gracefully.