--- a/eric6/Graphics/AssociationItem.py	Tue Apr 20 19:38:10 2021 +0200
+++ b/eric6/Graphics/AssociationItem.py	Tue Apr 20 19:47:39 2021 +0200
@@ -322,10 +322,11 @@
         if region == NoRegion:
             return
         
-        if isWidgetA:
-            rect = self.__mapRectFromItem(self.itemA)
-        else:
-            rect = self.__mapRectFromItem(self.itemB)
+        rect = (
+            self.__mapRectFromItem(self.itemA)
+            if isWidgetA else
+            self.__mapRectFromItem(self.itemB)
+        )
         x = rect.x()
         y = rect.y()
         ww = rect.width()