The oauth library https://pypi.python.org/pypi/oauth/1.0.1 has been abandoned upstream since 2009. It also doesn't support Python 3 or OAuth 2. Its use in django-piston should be replaced with oauthlib https://pypi.python.org/pypi/oauthlib/0.4.1 which is a modern, maintained, OAuth library compatible with Python 3 and OAuth 2. It's not that hard to convert, although the APIs are a little different. We've done a bunch of these conversion in Ubuntu and are striving to remove the old oauth library from Ubuntu.
Issue #231 new