From 13584d64fb7b4a9f34ac7490551ec4328bd73fd9 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Sat, 20 Oct 2018 18:57:31 +0200
Subject: [PATCH] py3: cannot take len() of zip() object directly

---
 src/Mod/OpenSCAD/OpenSCADUtils.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Mod/OpenSCAD/OpenSCADUtils.py b/src/Mod/OpenSCAD/OpenSCADUtils.py
index 0dc2c999ce..7effdd9059 100644
--- a/src/Mod/OpenSCAD/OpenSCADUtils.py
+++ b/src/Mod/OpenSCAD/OpenSCADUtils.py
@@ -211,6 +211,7 @@ def fcsubmatrix(m):
 def multiplymat(l,r):
     """multiply matrices given as lists of row vectors"""
     rt=zip(*r) #transpose r
+    rt=list(rt)
     mat=[]
     for y in range(len(rt)):
         mline=[]