Django users post to twitter
You could just extract the code into your own project and that will work. But the benefits of using an open source library is that there's a good chance when Twitter or Social Network X changes it's API, the library, if popular, would get updated as opposed to you needing to make the change.
I use Django-social-auth to authenticate the users of a Django project. So I guess I have all the necessary information about a Twitter user to make a post on their behalf on their Twitter account. So do I really need to install a new app? or with the info at hand how would I do that? Isn't it just a matter of posting to a Twitter API with the relevant info?