Jul 5, 2023 · Jul 5, 2023 · Jul 5, 2023 · Jul 5, 2023 · Jul 5, 2023
diff --git a/Doc/library/doctest.rst b/Doc/library/doctest.rst
   >>> [1, 2, 3].remove(42)
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   ValueError:list.remove(x): x not in list
   ValueError:42 is not in list

 That doctest succeeds if :exc:`ValueError` is raised, with the ``list.remove(x):
 x not in list`` detail as shown.
 That doctest succeeds if :exc:`ValueError` is raised, with the ``42 is not inlist
 `` detail as shown.

 The expected output for an exception must start with a traceback header, which
 may be either of the following two lines, indented the same as the first line of
diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-07-06-00-35-44.gh-issue-96844.kwvoS-.rst b/Misc/NEWS.d/next/Core and Builtins/2023-07-06-00-35-44.gh-issue-96844.kwvoS-.rst
 Improve error message of :meth:`list.remove`. Patch by Dong-hee Na.
diff --git a/Objects/listobject.c b/Objects/listobject.c
        else if (cmp < 0)
            return NULL;
    }
 PyErr_SetString(PyExc_ValueError, "list.remove(x): x not in list");
 PyErr_Format(PyExc_ValueError, "%R is not in list", value);
    return NULL;
 }
Original file line number	Diff line number	Diff line change
Expand Up		@@ -409,10 +409,10 @@ Simple example::
		>>> [1, 2, 3].remove(42)
		Traceback (most recent call last):
		File "<stdin>", line 1, in <module>
		ValueError:list.remove(x): x not in list
		ValueError:42 is not in list

		That doctest succeeds if :exc:`ValueError` is raised, with the ``list.remove(x):
		x not in list`` detail as shown.
		That doctest succeeds if :exc:`ValueError` is raised, with the ``42 is not inlist
		`` detail as shown.

		The expected output for an exception must start with a traceback header, which
		may be either of the following two lines, indented the same as the first line of
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Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Improve error message of :meth:`list.remove`. Patch by Dong-hee Na.
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2694,7 +2694,7 @@ list_remove(PyListObject self, PyObject value)
		else if (cmp < 0)
		return NULL;
		}
		PyErr_SetString(PyExc_ValueError, "list.remove(x): x not in list");
		PyErr_Format(PyExc_ValueError, "%R is not in list", value);
		return NULL;
		}

Expand Down