# /etc/systemd/system/pong_bot.service
# sudo systemctl daemon-reload
# sudo systemctl start pong_bot.service

[Unit]
Description=PONG-BOT
After=network.target

[Service]
Type=simple
User=pi
Group=pi
WorkingDirectory=/dir/
ExecStart=python3 pong_bot.py
ExecStop=pkill -f pong_bot.py

# Disable Python's buffering of STDOUT and STDERR, so that output from the
# service shows up immediately in systemd's logs
Environment=PYTHONUNBUFFERED=1

Restart=on-failure
Type=notify #try simple if any problems

[Install]
WantedBy=default.target