diff -up libkdtree++_0.7.0/python-bindings/py-kdtree_test.py.py3 libkdtree++_0.7.0/python-bindings/py-kdtree_test.py

--- libkdtree++_0.7.0/python-bindings/py-kdtree_test.py.py3	2008-12-30 06:06:36.000000000 -0700

+++ libkdtree++_0.7.0/python-bindings/py-kdtree_test.py	2019-03-19 14:55:53.973285963 -0600

@@ -3,9 +3,12 @@

 #

 import unittest

+import sys

 from kdtree import KDTree_2Int, KDTree_4Int, KDTree_1Float, KDTree_3Float, KDTree_6Float

+if sys.version > '3':

+    long = int

 class KDTree_2IntTestCase(unittest.TestCase):

     def test_empty(self):