fix test that failed in python2 due to changes to hash builtin

test/test_path.py

@@ -1,5 +1,7 @@
 # External dependencies
 from __future__ import division, absolute_import, print_function
+
+import sys
 import unittest
 from math import sqrt, pi
 from operator import itemgetter
@@ -738,26 +740,27 @@ class TestPath(unittest.TestCase):
         test_curves = [bezpath, bezpathz, path, pathz, lpath, qpath, cpath,
                        apath, line1, arc1, arc2, cub1, cub2, quad3, linez]
 
-        expected_hashes = [
-            -6073024107272494569,
-            -2519772625496438197,
-            8726412907710383506,
-            2132930052750006195,
-            3112548573593977871,
-            991446120749438306,
-            -5589397644574569777,
-            -4438808571483114580,
-            -3125333407400456536,
-            -4418099728831808951,
-            702646573139378041,
-            -6331016786776229094,
-            5053050772929443013,
-            6102272282813527681,
-            -5385294438006156225,
-        ]
+        # this is necessary due to changes to the builtin `hash` function
+        if sys.version_info.major == 2:
+            expected_hashes = [
+                -5762846476463470127, -138736730317965290, -2005041722222729058,
+                8448700906794235291, -5178990533869800243, -4003140762934044601,
+                8575549467429100514, 5166859065265868968, 1373103287265872323,
+                -1022491904150314631, 4188352014604112779, -5090374009174854814,
+                -7093907105533857815, 2036243740727202243, -8108488067585685407]
+        else:
+            expected_hashes = [
+                -6073024107272494569, -2519772625496438197, 8726412907710383506,
+                2132930052750006195, 3112548573593977871, 991446120749438306,
+                -5589397644574569777, -4438808571483114580, -3125333407400456536,
+                -4418099728831808951, 702646573139378041, -6331016786776229094,
+                5053050772929443013, 6102272282813527681, -5385294438006156225,
+            ]
 
         for c, h in zip(test_curves, expected_hashes):
-            self.assertTrue(hash(c) == h, msg=f"hash {h} was expected for curve = {c}")
+            if hash(c) != h:
+                from pdb import set_trace; set_trace()
+            self.assertTrue(hash(c) == h, msg="hash {} was expected for curve = {}".format(h, c))
 
     def test_circle(self):
         arc1 = Arc(0j, 100 + 100j, 0, 0, 0, 200 + 0j)