another fix

diff --git a/Cython/Shadow.py b/Cython/Shadow.py
index 0e22be6bd49d23df5391cd081bf3afa0dfd8c59f..ddfb3fc55700659239986c4d03fe28737367f319 100644 (file)
--- a/Cython/Shadow.py
+++ b/Cython/Shadow.py
@@ -190,10 +190,15 @@ py_complex = complex
 
 
 try:
-    set
-except NameError:
-    # Python 2.3
-    from sets import Set as set, ImmutableSet as frozenset
+    # Python 3
+    from builtins import set, frozenset
+except ImportError:
+    try:
+        # Python 2.4+
+        from __builtin__ import set, frozenset
+    except ImportError:
+        # Py 2.3
+        from sets import Set as set, ImmutableSet as frozenset
 
 # Predefined types