Boost.Python enable_shared_from_this patches by Nicolas Lelong and Chad Austin:

http://mail.python.org/pipermail/cplusplus-sig/2008-December/014103.html
  http://mail.python.org/pipermail/cplusplus-sig/2008-February/013003.html


[SVN r50368]

test/enable_shared_from_this.cpp

@@ -0,0 +1,48 @@
+// Copyright David Abrahams 2002.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/python/module.hpp>
+#include <boost/python/class.hpp>
+#include <boost/python/call_method.hpp>
+#include <boost/python/extract.hpp>
+#include <boost/python/def.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <boost/shared_ptr.hpp>
+#include "test_class.hpp"
+
+#include <memory>
+
+using namespace boost::python;
+using boost::shared_ptr;
+
+class Test;
+typedef shared_ptr<Test> TestPtr;
+
+class Test : public boost::enable_shared_from_this<Test> {
+public:
+    static TestPtr construct() {
+        return TestPtr(new Test);
+    }
+
+    void act() {
+        TestPtr kungFuDeathGrip(shared_from_this());
+    }
+
+    void take(TestPtr t) {
+    }
+};
+
+BOOST_PYTHON_MODULE(enable_shared_from_this_ext)
+{
+    class_<Test, TestPtr, boost::noncopyable>("Test")
+        .def("construct", &Test::construct).staticmethod("construct")
+        .def("act", &Test::act)
+        .def("take", &Test::take)
+        ;
+}
+
+#include "module_tail.cpp"
+
+