From 0c7af76db771abec8fb4e8d10dc7b9cd7d3708b6 Mon Sep 17 00:00:00 2001
From: Robert Bradshaw <robertwb@math.washington.edu>
Date: Sat, 11 Dec 2010 02:10:14 -0800
Subject: [PATCH] Python 2.3 fix.

---
 Cython/Build/Dependencies.py |  6 +-----
 Cython/Build/Inline.py       |  1 +
 Cython/Shadow.py             | 14 +++++---------
 3 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/Cython/Build/Dependencies.py b/Cython/Build/Dependencies.py
index 66046312..e4cd4fa8 100644
--- a/Cython/Build/Dependencies.py
+++ b/Cython/Build/Dependencies.py
@@ -1,11 +1,7 @@
 from glob import glob
 import re, os, sys
+from cython import set
 
-try:
-    set
-except NameError:
-    # Python 2.3
-    from sets import Set as set
 
 from distutils.extension import Extension
 
diff --git a/Cython/Build/Inline.py b/Cython/Build/Inline.py
index 7295afa2..d5494e58 100644
--- a/Cython/Build/Inline.py
+++ b/Cython/Build/Inline.py
@@ -1,5 +1,6 @@
 import tempfile
 import sys, os, re, inspect
+from cython import set
 
 try:
     import hashlib
diff --git a/Cython/Shadow.py b/Cython/Shadow.py
index a4bbd206..0e22be6b 100644
--- a/Cython/Shadow.py
+++ b/Cython/Shadow.py
@@ -188,16 +188,12 @@ except NameError: # Py3
 py_float = float
 py_complex = complex
 
+
 try:
-    # 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
+    set
+except NameError:
+    # Python 2.3
+    from sets import Set as set, ImmutableSet as frozenset
 
 # Predefined types
 
-- 
2.26.2