Add a note about NameError/AttributeError suggestions with custom error functions (GH-26794) (GH-26796)

miss-islington · pablogsal · web-flow · commit 344487b95616 · 2021-06-20T20:22:40.000+01:00
(cherry picked from commit 83c9dad) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
@@ -345,6 +345,11 @@ raised from:
 
 (Contributed by Pablo Galindo in :issue:`38530`.)
 
+   .. warning::
+      Notice this won't work if :c:func:`PyErr_Display` is not called to display the error
+      which can happen if some other custom error display function is used. This is a common
+      scenario in some REPLs like IPython.
+
 NameErrors
 ~~~~~~~~~~
 
@@ -362,6 +367,12 @@ was raised from:
 
 (Contributed by Pablo Galindo in :issue:`38530`.)
 
+   .. warning::
+      Notice this won't work if :c:func:`PyErr_Display` is not called to display the error,
+      which can happen if some other custom error display function is used. This is a common
+      scenario in some REPLs like IPython.
+
+
 PEP 626: Precise line numbers for debugging and other tools
 -----------------------------------------------------------
 
