[Answer]-Intuit Quickbooks OAuth version 1.0 or 2.0?

It’s OAuth v1.0.

They have a bit of documentation here:

• https://developer.intuit.com/docs/0100_quickbooks_online/0100_essentials/0085_develop_quickbooks_apps/0004_authentication_and_authorization

I would highly recommend you find an existing OAuth library for Django/Python – writing your own is likely going to be a painful process.