datatree to list and back.py

import rhinoscriptsyntax as rs

import Rhino.Geometry as rg
from clr import AddReference as addr
addr("Grasshopper")

from System import Object
from Grasshopper import DataTree
from Grasshopper.Kernel.Data import GH_Path


def raggedListToDataTree(raggedList):
    rl = raggedList
    result = DataTree[object]()
    for i in range(len(rl)):
        temp = []
        for j in range(len(rl[i])):
            temp.append(rl[i][j])
        #print i, " - ",temp
        path = GH_Path(i)
        result.AddRange(temp, path)
    return result

def dataTreeToList(aTree):
    theList = []
    for i in range(aTree.BranchCount ):
        thisListPart = []
        thisBranch = aTree.Branch(i)
        for j in range(len(thisBranch)):
            thisListPart.append( thisBranch[j] )
        theList.append(thisListPart)
    return theList

print raggedListToDataTree(dataTreeToList(somePts))