[3.11] gh-116535: Fix distracting "TypeError" in example code (gh-116538) (gh-116552)

miss-islington · dec1 · web-flow · commit 982f457f6f86 · 2024-03-09T17:08:23.000-05:00
gh-116535: Fix distracting "TypeError" in example code (gh-116538) (cherry picked from commit db8f423) Co-authored-by: Declan <5962877+dec1@users.noreply.github.com>
diff --git a/Doc/library/dataclasses.rst b/Doc/library/dataclasses.rst
@@ -712,7 +712,7 @@ Using dataclasses, *if* this code was valid::
   class D:
       x: list = []      # This code raises ValueError
       def add(self, element):
-          self.x += element
+          self.x.append(element)
 
 it would generate code similar to::
 
@@ -721,7 +721,7 @@ it would generate code similar to::
       def __init__(self, x=x):
           self.x = x
       def add(self, element):
-          self.x += element
+          self.x.append(element)
 
   assert D().x is D().x
 
