I'm basically looking for something with a similar functionality to the Neighbor VOP.
I want to traverse an open curve starting from one side so that I can re-sort point numbers in a sequential fashion.
Can I access a tuple of points connected to one specific point using python?

Cheers

Sadly HOM provides no functionality for getting any connectivity information. You basically have to build your own based on the vertices per primitive and their referenced points.

Quickest way would be to group the curve into an edgegroup and process the points for every edge.

The attached otl from an older post counts neighbouring points… look under the “## process points ###” heading.

Sort SOP: Point Sort->By Vertex Order
is what I normally use for curves.