Custom edgeloop selection #WIP

PS_edgeloop.py

from pymel.all import *

def selectEdgeLoop():
	
	edge = ls( sl=1, fl=1 )[0]
	shp = PyNode( ls( hl=1 )[0] ).getShape()
	
	vertices = edge.connectedVertices()
	newEdges = []
	newEdges.append(  edge  )
	
	for vertex in vertices:
		currVertex = vertex
		currEdge = edge

		while 1:
			edgesUnneed = []			
			for f in currEdge.connectedFaces(): edgesUnneed.extend( f.getEdges() )
			edgesUnneed = [ shp.e[ e ] for e in edgesUnneed ]			
			targetEdges = [ e for e in currVertex.connectedEdges() if e not in edgesUnneed ]
			targetEdges = [ e for e in targetEdges if e not in newEdges ]	

			if len( targetEdges ) != 1: break
			
			newEdges.append( targetEdges[0] )
			currEdge = targetEdges[0]
			currVertex = [ v for v in targetEdges[0].connectedVertices() if v != currVertex ][0]	
					
	select( newEdges, r=1 )
	
import time

start = time.time()
selectEdgeLoop()
print ( time.time() - start )