This project was made to allow discord bots an easy way to persistently store data, but without having to dabble in databases, and database hosting. Google spreadsheets is a good solution since they allocate you 15GB of data for free in your Google drive, and the sheets themself are easy to understand.
Packages:
Google api client
Gspread
Discord.py Rewrite version
Other:
-Google account
-Google api client credentials
-A discord bot account and it's token
Place your token in main.py, in the bot.run('TOKEN HERE) line
Place your client_credentials.json in your project directory
Support files for hosting your bot on Heroku are present already. You'll need to do it manually if you need other packages in your requirement though.
Make a different version for people who want to use all the functions in pure Python, not combined with Discord.py syntax.