OAuth often seems complicated and difficult-to-implement. There are several prominent libraries for signing OAuth requests, but they all suffer from one or both of the following:

    They predate the OAuth 1.0 spec, AKA RFC 5849.
    They assume the usage of a specific HTTP request library.

OAuthLib is a generic utility which implements the logic of OAuth without assuming a specific HTTP request object. Use it to graft OAuth support onto your favorite HTTP library. If you're a maintainer of such a library, write a thin veneer on top of OAuthLib and get OAuth support for very little effort.