Fix issue 3221 by emitting a RuntimeWarning instead of raising SystemError when the parent module can't be found during an absolute import (likely due to non-PEP 361 aware code which sets a module level __package__ attribute)
diff --git a/Misc/NEWS b/Misc/NEWS
index 0cee84e..e29a9b0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,12 @@
 Core and Builtins
 -----------------
 
+- Issue #3221: Issue a RuntimeWarning instead of raising SystemError if
+  the parent module cannot be found while performing an absolute import.
+  This means that an incorrectly defined __package__ attribute will
+  now only prevent relative imports in that module rather than causing
+  all imports from that module to fail.
+
 - Issue #2517: Allow unicode messages in Exceptions again by correctly
   bypassing the instance dictionary when looking up __unicode__ on
   new-style classes.