[Unit]
Description=Splash screen
DefaultDependencies=no
[Service]
Type=oneshot
ExecStart=/usr/local/bin/psplash
[Install]
WantedBy=basic.target
job for .service failed because the control process exited with an error code
Here is shell script to make service of python code. It will start the execution at startup,
[Unit]
Description= Python First Service
After=multi-user.target
[Service]
Type=simple
ExecStart=/usr/bin/python /home/debian/serv_demo.py
Restart=on-abort
[Install]
WantedBy=multi-user.target