py: Add support for user-defined iterators via __iter__, __next__.
diff --git a/py/qstrdefs.h b/py/qstrdefs.h
index 44c6100..1c8afe7 100644
--- a/py/qstrdefs.h
+++ b/py/qstrdefs.h
@@ -17,6 +17,7 @@
 
 Q(__bool__)
 Q(__len__)
+Q(__iter__)
 Q(__getitem__)
 Q(__setitem__)
 Q(__add__)