only catch AttributeError in hasattr() #9666
diff --git a/Misc/ACKS b/Misc/ACKS
index eef51e3..d1fc416 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -730,6 +730,7 @@
 Barry Scott
 Nick Seidenman
 Žiga Seilnach
+Yury Selivanov
 Fred Sells
 Jiwon Seo
 Roger D. Serwy