From 4572c0b048f667d9bb6ab6ba1e5050ef43377717 Mon Sep 17 00:00:00 2001
From: Gregory Ewing <greg.ewing@canterbury.ac.nz>
Date: Mon, 26 Nov 2007 22:49:11 +1300
Subject: [PATCH] Keep counted reference to module

+
+    - A counted reference was not kept to the module, so if the entry
+        in sys.modules was replaced, the module was freed prematurely.
+        [Franck Pommerau]
---
 Cython/Compiler/ModuleNode.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Cython/Compiler/ModuleNode.py b/Cython/Compiler/ModuleNode.py
index 99065b61..c86204fb 100644
--- a/Cython/Compiler/ModuleNode.py
+++ b/Cython/Compiler/ModuleNode.py
@@ -1543,6 +1543,9 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
             "if (!%s) %s;" % (
                 env.module_cname,
                 code.error_goto(self.pos)));
+        code.putln(
+            "Py_INCREF(%s);" %
+                env.module_cname)
         code.putln(
             '%s = PyImport_AddModule(__Pyx_BUILTIN_MODULE_NAME);' %
                 Naming.builtins_cname)
-- 
2.26.2