--- /usr/lib64/python2.6/pkgutil.py-orig	2009-09-30 14:32:15.000000000 +0200
+++ /usr/lib64/python2.6/pkgutil.py	2009-09-30 14:32:52.000000000 +0200
@@ -111,6 +111,9 @@ def walk_packages(path=None, prefix='', 
             except ImportError:
                 if onerror is not None:
                     onerror(name)
+            except AttributeError:
+                if onerror is not None:
+                    onerror(name)
             except Exception:
                 if onerror is not None:
                     onerror(name)