make a daemon
[Unit]
Description=Python daemon
After=syslog.target
After=network.target
[Service]
Type=simple
User=<run as user>
Group=<run as group group>
ExecStart=/usr/bin/python <python script home>/script.py
# Give the script some time to startup
TimeoutSec=300
[Install]
WantedBy=multi-user.target