Rick Oost: Generalized traversals

See the PyGrunn website for more info about this one-day Python conference in Groningen, The Netherlands.

Inspired by the Haskell programming language he wrote a package for traversing. It does various things with mapping (applying a function to all items in a list) and reducing (combining a list into one return value). There are ways to reduce starting with the left-most value or the right-most value. So there is more flexibility than the standard Python list comprehension. It generalizes generators. Next to the normal yields of a generator you can have a return value at the end.

The theory and definitions went very quick. Then he showed code examples that needed too much formatting and too much explanation to write down here properly, sorry.

He needs to write some documentation and then will put it on PyPI (as traverse.tree or some other name).