How to add your Python bot as a startup service on your Ubuntu Server

gistfile1.txt

[Unit]
Description=bot
After=network.target

[Service]
User=username
Type=idle
ExecStart=/home/user/bots/venv/bin/python3.6 /home/user/bots/botscript.py

[Install]
WantedBy=multi-user.target


add this file (change the directory to your virtualenv and bot script - also the user) to /etc/systemd/system/
save it as botname.service

start it by running 
sudo systemctl start botname
sudo systemctl enable botname
sudo systemctl status botname