Install the following Python library:

python3 -m pip install dotenv

In your project folder create a file called ".env" in your root directory. Open the file with your editor and create a line for your token with the following syntax:

TOKEN=input_your_token_here
GUILD_ID=paste_your_guild_ID_here
THIRD_VAR=another_variable_goes_here

IMPORTANT

If you use git or some other version control make sure to exclude the .env file from your repositories as we want this file to remain local!

Your environmental variables are now set up and we will import them into our code once we start programming the bot.