diff --git a/Doc/conf.py b/Doc/conf.py
index 19e05e1aa8f..19eab1a9340 100644
--- a/Doc/conf.py
+++ b/Doc/conf.py
@@ -157,6 +157,77 @@ nitpick_ignore = [
     ('envvar', 'USER'),
     ('envvar', 'USERNAME'),
     ('envvar', 'USERPROFILE'),
+]
+
+# Temporary undocumented names.
+# In future this list must be empty.
+nitpick_ignore += [
+    # C API: Standard Python exception classes
+    ('c:data', 'PyExc_ArithmeticError'),
+    ('c:data', 'PyExc_AssertionError'),
+    ('c:data', 'PyExc_AttributeError'),
+    ('c:data', 'PyExc_BaseException'),
+    ('c:data', 'PyExc_BlockingIOError'),
+    ('c:data', 'PyExc_BrokenPipeError'),
+    ('c:data', 'PyExc_BufferError'),
+    ('c:data', 'PyExc_ChildProcessError'),
+    ('c:data', 'PyExc_ConnectionAbortedError'),
+    ('c:data', 'PyExc_ConnectionError'),
+    ('c:data', 'PyExc_ConnectionRefusedError'),
+    ('c:data', 'PyExc_ConnectionResetError'),
+    ('c:data', 'PyExc_EOFError'),
+    ('c:data', 'PyExc_Exception'),
+    ('c:data', 'PyExc_FileExistsError'),
+    ('c:data', 'PyExc_FileNotFoundError'),
+    ('c:data', 'PyExc_FloatingPointError'),
+    ('c:data', 'PyExc_GeneratorExit'),
+    ('c:data', 'PyExc_ImportError'),
+    ('c:data', 'PyExc_IndentationError'),
+    ('c:data', 'PyExc_IndexError'),
+    ('c:data', 'PyExc_InterruptedError'),
+    ('c:data', 'PyExc_IsADirectoryError'),
+    ('c:data', 'PyExc_KeyboardInterrupt'),
+    ('c:data', 'PyExc_KeyError'),
+    ('c:data', 'PyExc_LookupError'),
+    ('c:data', 'PyExc_MemoryError'),
+    ('c:data', 'PyExc_ModuleNotFoundError'),
+    ('c:data', 'PyExc_NameError'),
+    ('c:data', 'PyExc_NotADirectoryError'),
+    ('c:data', 'PyExc_NotImplementedError'),
+    ('c:data', 'PyExc_OSError'),
+    ('c:data', 'PyExc_OverflowError'),
+    ('c:data', 'PyExc_PermissionError'),
+    ('c:data', 'PyExc_ProcessLookupError'),
+    ('c:data', 'PyExc_RecursionError'),
+    ('c:data', 'PyExc_ReferenceError'),
+    ('c:data', 'PyExc_RuntimeError'),
+    ('c:data', 'PyExc_StopAsyncIteration'),
+    ('c:data', 'PyExc_StopIteration'),
+    ('c:data', 'PyExc_SyntaxError'),
+    ('c:data', 'PyExc_SystemError'),
+    ('c:data', 'PyExc_SystemExit'),
+    ('c:data', 'PyExc_TabError'),
+    ('c:data', 'PyExc_TimeoutError'),
+    ('c:data', 'PyExc_TypeError'),
+    ('c:data', 'PyExc_UnboundLocalError'),
+    ('c:data', 'PyExc_UnicodeDecodeError'),
+    ('c:data', 'PyExc_UnicodeEncodeError'),
+    ('c:data', 'PyExc_UnicodeError'),
+    ('c:data', 'PyExc_UnicodeTranslateError'),
+    ('c:data', 'PyExc_ValueError'),
+    ('c:data', 'PyExc_ZeroDivisionError'),
+    # C API: Standard Python warning classes
+    ('c:data', 'PyExc_BytesWarning'),
+    ('c:data', 'PyExc_DeprecationWarning'),
+    ('c:data', 'PyExc_FutureWarning'),
+    ('c:data', 'PyExc_ImportWarning'),
+    ('c:data', 'PyExc_PendingDeprecationWarning'),
+    ('c:data', 'PyExc_ResourceWarning'),
+    ('c:data', 'PyExc_RuntimeWarning'),
+    ('c:data', 'PyExc_SyntaxWarning'),
+    ('c:data', 'PyExc_UnicodeWarning'),
+    ('c:data', 'PyExc_UserWarning'),
+    ('c:data', 'PyExc_Warning'),
     # Do not error nit-picky mode builds when _SubParsersAction.add_parser cannot
     # be resolved, as the method is currently undocumented. For context, see
     # https://github.com/python/cpython/pull/103289.