From 0d0da44d7b24ece032f6c4c23c8e48bd6f7a15a8 2014-09-30 21:11:34
From: Thomas Kluyver <takowl@gmail.com>
Date: 2014-09-30 21:11:34
Subject: [PATCH] Interpret another error as missing symlink support on Windows

This occurs if the system and Python support symlinks, but the user does
not have permission to create them.

---

diff --git a/IPython/utils/tests/test_io.py b/IPython/utils/tests/test_io.py
index a72207c..a76179f 100644
--- a/IPython/utils/tests/test_io.py
+++ b/IPython/utils/tests/test_io.py
@@ -144,7 +144,10 @@ def test_atomic_writing():
         try:
             os.symlink(f1, f2)
             have_symlink = True
-        except (AttributeError, NotImplementedError):
+        except (AttributeError, NotImplementedError, OSError):
+            # AttributeError: Python doesn't support it
+            # NotImplementedError: The system doesn't support it
+            # OSError: The user lacks the privilege (Windows)
             have_symlink = False
 
         with nt.assert_raises(CustomExc):