[3.12] gh-112266: Remove (if defined) part from __dict__ and __weakref__ docstrings (GH-112268) (#112270)

gh-112266: Remove `(if defined)` part from `__dict__` and `__weakref__` docstrings (GH-112268)
(cherry picked from commit f812914)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>

Author: miss-islington

Lib/test/test_pydoc.py

@@ -40,8 +40,8 @@ class nonascii:
 
 if test.support.HAVE_DOCSTRINGS:
     expected_data_docstrings = (
-        'dictionary for instance variables (if defined)',
-        'list of weak references to the object (if defined)',
+        'dictionary for instance variables',
+        'list of weak references to the object',
         ) * 2
 else:
     expected_data_docstrings = ('', '', '', '')
@@ -105,10 +105,10 @@ class C(builtins.object)
      |  Data descriptors defined here:
      |
      |  __dict__
-     |      dictionary for instance variables (if defined)
+     |      dictionary for instance variables
      |
      |  __weakref__
-     |      list of weak references to the object (if defined)
+     |      list of weak references to the object
 
 FUNCTIONS
     doc_func()
@@ -166,16 +166,16 @@ class A(builtins.object)
 
     Data descriptors defined here:
         __dict__
-            dictionary for instance variables (if defined)
+            dictionary for instance variables
         __weakref__
-            list of weak references to the object (if defined)
+            list of weak references to the object
 
 class B(builtins.object)
     Data descriptors defined here:
         __dict__
-            dictionary for instance variables (if defined)
+            dictionary for instance variables
         __weakref__
-            list of weak references to the object (if defined)
+            list of weak references to the object
     Data and other attributes defined here:
         NO_MEANING = 'eggs'
         __annotations__ = {'NO_MEANING': <class 'str'>}
@@ -192,9 +192,9 @@ class C(builtins.object)
         __class_getitem__(item) from builtins.type
     Data descriptors defined here:
         __dict__
-            dictionary for instance variables (if defined)
+            dictionary for instance variables
         __weakref__
-             list of weak references to the object (if defined)
+             list of weak references to the object
 
 Functions
     doc_func()
@@ -826,10 +826,10 @@ class B(A)
  |  Data descriptors inherited from A:
  |
  |  __dict__
- |      dictionary for instance variables (if defined)
+ |      dictionary for instance variables
  |
  |  __weakref__
- |      list of weak references to the object (if defined)
+ |      list of weak references to the object
 ''' % __name__)
 
         doc = pydoc.render_doc(B, renderer=pydoc.HTMLDoc())
@@ -858,9 +858,9 @@ class B(A)
 
     Data descriptors inherited from A:
         __dict__
-            dictionary for instance variables (if defined)
+            dictionary for instance variables
         __weakref__
-            list of weak references to the object (if defined)
+            list of weak references to the object
 """
         as_text = html2text(doc)
         expected_lines = [line.strip() for line in expected_text.split("\n") if line]

Misc/NEWS.d/next/Core and Builtins/2023-11-19-15-57-23.gh-issue-112266.BSJMbR.rst

@@ -0,0 +1,2 @@
+Change docstrings of :attr:`~object.__dict__` and
+:attr:`~object.__weakref__`.

Objects/typeobject.c

@@ -2974,21 +2974,21 @@ subtype_getweakref(PyObject *obj, void *context)
 
 static PyGetSetDef subtype_getsets_full[] = {
     {"__dict__", subtype_dict, subtype_setdict,
-     PyDoc_STR("dictionary for instance variables (if defined)")},
+     PyDoc_STR("dictionary for instance variables")},
     {"__weakref__", subtype_getweakref, NULL,
-     PyDoc_STR("list of weak references to the object (if defined)")},
+     PyDoc_STR("list of weak references to the object")},
     {0}
 };
 
 static PyGetSetDef subtype_getsets_dict_only[] = {
     {"__dict__", subtype_dict, subtype_setdict,
-     PyDoc_STR("dictionary for instance variables (if defined)")},
+     PyDoc_STR("dictionary for instance variables")},
     {0}
 };
 
 static PyGetSetDef subtype_getsets_weakref_only[] = {
     {"__weakref__", subtype_getweakref, NULL,
-     PyDoc_STR("list of weak references to the object (if defined)")},
+     PyDoc_STR("list of weak references to the object")},
     {0}
 };