python - maya.api.openMaya setWeight not calling right version of function -

i'm not including supplementary files use track maya nodes, if see attr, know it's way track dags/mobjects pass variables , find paths , attributes of tracked nodes. polygon , polygonshape similar classes inherit node tracking method specific types of nodes. code them further in file, i'm excluding code not make longer needs be. suffice say, tracks polygon dag , polygonshape mobj.

here's problem.

# error: line 1: typeerror: file d:/libraries/my documents/maya/scripts\toolbox\shapes.py line 332: integer required #  

the line 332 setweight line @ bottom.

using code, can weights , break them apart verts seemingly fine, when try setweights, says needs int variable. int variable refers vert vert version of setweight method. reason it's not accepting variables i'm submitting , reverting wrong method. i've checked types going method. correct. checked length of influences , length of weights correct. since they're right type , right length, i'm left assume it's self.vertexcomp, mobject worked correctly get, , i've seen versions of setweights used exact same method.

can @ , see causing setweight error:

import maya.cmds cmds import attributor attr #custom package interact nodes import maya.api.openmaya om import maya.api.openmayaanim omanim  class skincluster(attr.node):     outputgeometry = attr.connection("outputgeometry")      def getinfl_ids(self,dagobj=false,pathfirst=false):         infdags = self.skinfn.influenceobjects()         infids = {}         x in xrange(len(infdags)):             infpath = attr.joint(nodename=infdags[x].fullpathname()) if dagobj else infdags[x].fullpathname()             infid = int(self.skinfn.indexforinfluenceobject(infdags[x]))             if pathfirst:                 infids[infpath] = infid             else:                 infids[infid] = infpath         return dict(infids)         # returns {0:"joint1",1:"joint2"}         # useful figuring out list indexes edit weight tools      def __init__(self, nodename=none, tracker=none, vertices=none, shapenode=none):         if not nodename , vertices:             nodename = polygonshape(nodename=vertices[0]).inmesh["in"][0]         self.initialize(nodename=nodename, tracker=tracker)         self.polygon = polygon(nodename=self.outputgeometry["out"][0])         self.shapenode = shapenode if shapenode else polygonshape(nodename=self.polygon.shapenodes[0].path)         self.skinfn = omanim.mfnskincluster(self.tracker.obj)         self.vertexcomp = om.mfnsingleindexedcomponent().create(om.mfn.kmeshvertcomponent)      def getweights(self, vertices=none):         vertweights = self.skinfn.getweights(self.polygon.tracker.dag, self.vertexcomp)         weights = list(vertweights[-2])         infcount = vertweights[-1]         weights = [weights[x:x+infcount] x in range(0,len(weights),infcount)]         dicty = {}         i, weight in enumerate(weights):             if not vertices or in vertices:                 dicty.update({i:weight})         return dicty         # returns vert weight list         # {0:[0.1, 0.2, 0.3, 0.4], 1:[etc..]}      def setweights(self,values=none,normalize=true):         vertices = values.keys() #gets verts going edited         oldweights = self.getweights(vertices) #gets vert weights undo         oldvalues = []         newvalues = []         influences = self.getinfl_ids().keys() # gets influence indices         vert in vertices:             oldvalues += oldweights[vert]   # combine weights list             newvalues += values[vert]  # combines new weights list         self.skinfn.setweights(self.polygon.tracker.dag, self.vertexcomp,                                om.mintarray(influences), om.mdoublearray(newvalues),                                normalize=normalize, oldvalues=om.mdoublearray(oldvalues)) 

while printing double check types, output:

<type 'openmaya.mdagpath'> <type 'openmaya.mobject'> <type 'openmaya.mintarray'> <type 'openmaya.mdoublearray'> <type 'bool'> <type 'openmaya.mdoublearray'> 

source materials:

• https://gist.github.com/utatsuya/a95afe3c5523ab61e61b

  http://download.autodesk.com/us/maya/2010help/api/class_m_fn_skin_cluster.html#52071d6c77ca374a4c8723f0c63e90e5

found post similar issue, didn't appear help. maybe else notice why solutions work , i'm missing.

• https://groups.google.com/forum/#!topic/python_inside_maya/0n8-y70rgtq

what found maya.api.openmayaanim setweight function it's not undoable. have steps make can undone, , that's pain. instead created fetches getweight values , uses skinpercent command set them.

@property def weights(self):     vertweights = self.skinfn.getweights(self.polygon.tracker.dag, self.vertexcomp)     weights = list(vertweights[-2])     infcount = vertweights[-1]     weights = [weights[x:x + infcount] x in range(0, len(weights), infcount)]     dicty = {}     i, weight in enumerate(weights):         dicty.update({i: weight})     # returns {vert1:[weightvalue0,weightvalue1,weightvalue2..],vert2:[etc..]}     # weight list index corresponds influences self.getinfl_ids(), it's easy iterate weights using index.     return dicty  @weights.setter def weights(self, values):     #will set verts sent it. uses same data structure     influences = self.getinfl_ids()     vert, weights in values.iteritems():         tempy = []         i, value in enumerate(weights):             tempy += [(influences[i],value)]         cmds.skinpercent(self.path, self.shapenode.getvertname(vert), transformvalue=tempy)