commit 819d8d447da7e2a8530574af2a7574fdc011b0c2
author Petri Lehtinen <petri@digip.org> Sat Nov 05 23:18:06 2011 +0200
committer Petri Lehtinen <petri@digip.org> Sat Nov 05 23:18:06 2011 +0200
tree 7fd8113792e02e355b4913e82cb4b6cf532504b9
parent 972ba9e41f457007570b3de0a54e934881c7281e

Accept None as start and stop parameters for list.index() and tuple.index()

Closes #13340.

Lib/test/seq_tests.py

diff --git a/Lib/test/seq_tests.py b/Lib/test/seq_tests.py
index f5e4e0e..0c8cf90 100644
--- a/Lib/test/seq_tests.py
+++ b/Lib/test/seq_tests.py
@@ -363,6 +363,13 @@
         self.assertEqual(u.index(0, 3), 3)
         self.assertEqual(u.index(0, 3, 4), 3)
         self.assertRaises(ValueError, u.index, 2, 0, -10)
+        self.assertEqual(u.index(1, None), 4)
+        self.assertEqual(u.index(1, None, None), 4)
+        self.assertEqual(u.index(1, 0, None), 4)
+        self.assertEqual(u.index(1, None, 6), 4)
+        self.assertRaises(ValueError, u.index, -1, 3)
+        self.assertRaises(ValueError, u.index, -1, 3, None)
+        self.assertRaises(ValueError, u.index, 1, None, 4)
 
         self.assertRaises(TypeError, u.index)