diff --git a/Code/SimDivPickers/Wrap/testPickers.py b/Code/SimDivPickers/Wrap/testPickers.py
index dd631dc15..cb1eb4e05 100755
--- a/Code/SimDivPickers/Wrap/testPickers.py
+++ b/Code/SimDivPickers/Wrap/testPickers.py
@@ -27,7 +27,7 @@ class TestCase(unittest.TestCase):
         return 0.0
       if i<j:
         j,i=i,j
-      return self.dMat[i*(i-1)/2+j]
+      return self.dMat[i*(i-1)//2+j]
     lmaxmin = pkr.LazyPick(func, self.n, self.m,(886,112))
     self.assertEqual(list(lmaxmin),list(maxmin))
 
diff --git a/rdkit/SimDivFilters/__init__.py b/rdkit/SimDivFilters/__init__.py
index a4d609c95..e7ef4205c 100755
--- a/rdkit/SimDivFilters/__init__.py
+++ b/rdkit/SimDivFilters/__init__.py
@@ -4,7 +4,8 @@
 #
 from rdkit import rdBase
 try:
-  import rdSimDivPickers
+  from rdkit.SimDivFilters import rdSimDivPickers
   from rdkit.SimDivFilters.rdSimDivPickers import *
 except ImportError:
+  import traceback
   rdSimDivPickers=None