You may need to install additional components for your bot, but this configuration suits the most straightforward bot.
sudo apt update && sudo apt upgrade
sudo apt install python3
sudo apt install python3-pip
sudo apt-get install python3-venv
# Create a folder for a bot
mkdir tele-bot && cd tele-bot
# Create and activate the enviroment
python3 -m venv venv
source venv/bin/activate
# Install a Telegram bot
pip3 install python-telegram-bot
# pip3 install python-telegram-bot --upgrade
pip3 install pyTelegramBotAPI