diff -r e730da0cd489 Python/import.c
--- a/Python/import.c	Sat Apr 14 16:01:49 2012 +0200
+++ b/Python/import.c	Sat Apr 14 19:25:20 2012 +0100
@@ -3409,7 +3409,6 @@
     }
     else {
         PyObject *parentname, *parent;
-        Py_ssize_t len;
         parentname = PyUnicode_Substring(name, 0, subname_start);
         if (parentname == NULL) {
             goto error;
@@ -3427,8 +3426,8 @@
         if (path_list == NULL)
             PyErr_Clear();
         subname_start++;
-        len = PyUnicode_GET_LENGTH(name) - (subname_start + 1);
-        subname = PyUnicode_Substring(name, subname_start, len);
+        subname = PyUnicode_Substring(name, subname_start,
+                                      PyUnicode_GET_LENGTH(name));
     }
     if (subname == NULL)
         goto error;