Rakontu is a Web application that small groups of people can use together to share and work with their stories. It's for any group of people with stories to share and a reason to share them. Members build shared "story museums" that they can draw upon to achieve common goals like promoting a cause, learning from each other, and finding solutions to problems. It is based on ten years of research and practice in the field of organizational and community narrative and is a companion to the free e-book workingwithstories.org, which helps people use narrative techniques to help their communities and organizations. It uses questions, annotations, and links to organize and connect stories in more meaningful and useful ways than is possible in other social media applications. Other features such as safe storytelling via fictional attribution, the bridging of online and offline worlds, and fluid contribution roles are designed for the unique situation of people sharing stories for a reason.
BorderFlow implements a general-purpose graph clustering algorithm. It maximizes the inner to outer flow ratio from the border of each cluster to the rest of the graph. The main advantage of the algorithm is that it does not need parametrization to compute results of high accuracy.
treap.py is a treap implementation for Python. A treap is a hybrid of a binary tree and a binary heap that is self-balancing and is O(nlog2(n)) for most operations, including deleting a value, inserting a value, finding the least value, and finding the greatest value. This particular treap implementation looks like a dictionary to the caller, but it also supports getting an ordered list (forward or reverse) in O(n) time. The code is available as pure Python (should run on about any Python implementation supporting generators, but was tested on CPython 2.6) or as part Python and part Cython for performance. The version with Cython should run on CPython or Unladen Swallow, but was only tested on CPython 2.6.