[3.9] gh-91118: Fix docstrings that do not honor --without-doc-strings (GH-31769) (#91664)

Co-authored-by: Éric <merwok@netwok.org>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
(cherry picked from commit a573cb2fec664c645ab744658d7e941d72e1a398)

16 files changed, 77 insertions, 62 deletions

diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst
index d58a53b..d49f3ff 100644
--- a/Doc/c-api/typeobj.rst
+++ b/Doc/c-api/typeobj.rst
@@ -2482,7 +2482,7 @@ A basic static type::
        PyVarObject_HEAD_INIT(NULL, 0)
        .tp_name = "mymod.MyObject",
        .tp_basicsize = sizeof(MyObject),
-       .tp_doc = "My objects",
+       .tp_doc = PyDoc_STR("My objects"),
        .tp_new = myobj_new,
        .tp_dealloc = (destructor)myobj_dealloc,
        .tp_repr = (reprfunc)myobj_repr,
@@ -2512,7 +2512,7 @@ with a more verbose initializer::
        0,                              /* tp_setattro */
        0,                              /* tp_as_buffer */
        0,                              /* tp_flags */
-       "My objects",                   /* tp_doc */
+       PyDoc_STR("My objects"),        /* tp_doc */
        0,                              /* tp_traverse */
        0,                              /* tp_clear */
        0,                              /* tp_richcompare */
@@ -2545,7 +2545,7 @@ A type that supports weakrefs, instance dicts, and hashing::
        PyVarObject_HEAD_INIT(NULL, 0)
        .tp_name = "mymod.MyObject",
        .tp_basicsize = sizeof(MyObject),
-       .tp_doc = "My objects",
+       .tp_doc = PyDoc_STR("My objects"),
        .tp_weaklistoffset = offsetof(MyObject, weakreflist),
        .tp_dictoffset = offsetof(MyObject, inst_dict),
        .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
@@ -2572,7 +2572,7 @@ to create instances (e.g. uses a separate factory func)::
        .tp_name = "mymod.MyStr",
        .tp_basicsize = sizeof(MyStr),
        .tp_base = NULL,  // set to &PyUnicode_Type in module init
-       .tp_doc = "my custom str",
+       .tp_doc = PyDoc_STR("my custom str"),
        .tp_flags = Py_TPFLAGS_DEFAULT,
        .tp_new = NULL,
        .tp_repr = (reprfunc)myobj_repr,
diff --git a/Doc/extending/newtypes_tutorial.rst b/Doc/extending/newtypes_tutorial.rst
index 4b5eb69..7771e20 100644
--- a/Doc/extending/newtypes_tutorial.rst
+++ b/Doc/extending/newtypes_tutorial.rst
@@ -89,7 +89,7 @@ The second bit is the definition of the type object. ::
    static PyTypeObject CustomType = {
        PyVarObject_HEAD_INIT(NULL, 0)
        .tp_name = "custom.Custom",
-       .tp_doc = "Custom objects",
+       .tp_doc = PyDoc_STR("Custom objects"),
        .tp_basicsize = sizeof(CustomObject),
        .tp_itemsize = 0,
        .tp_flags = Py_TPFLAGS_DEFAULT,
@@ -160,7 +160,7 @@ you will need to OR the corresponding flags.
 
 We provide a doc string for the type in :c:member:`~PyTypeObject.tp_doc`. ::
 
-   .tp_doc = "Custom objects",
+   .tp_doc = PyDoc_STR("Custom objects"),
 
 To enable object creation, we have to provide a :c:member:`~PyTypeObject.tp_new`
 handler.  This is the equivalent of the Python method :meth:`__new__`, but
diff --git a/Doc/includes/custom.c b/Doc/includes/custom.c
index f361baf..26ca754 100644
--- a/Doc/includes/custom.c
+++ b/Doc/includes/custom.c
@@ -9,7 +9,7 @@ typedef struct {
 static PyTypeObject CustomType = {
     PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom.Custom",
-    .tp_doc = "Custom objects",
+    .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
     .tp_itemsize = 0,
     .tp_flags = Py_TPFLAGS_DEFAULT,
diff --git a/Doc/includes/custom2.c b/Doc/includes/custom2.c
index 5bacab7..2a3c59f 100644
--- a/Doc/includes/custom2.c
+++ b/Doc/includes/custom2.c
@@ -98,7 +98,7 @@ static PyMethodDef Custom_methods[] = {
 static PyTypeObject CustomType = {
     PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom2.Custom",
-    .tp_doc = "Custom objects",
+    .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
     .tp_itemsize = 0,
     .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
diff --git a/Doc/includes/custom3.c b/Doc/includes/custom3.c
index 2b7a99e..5a47530 100644
--- a/Doc/includes/custom3.c
+++ b/Doc/includes/custom3.c
@@ -148,7 +148,7 @@ static PyMethodDef Custom_methods[] = {
 static PyTypeObject CustomType = {
     PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom3.Custom",
-    .tp_doc = "Custom objects",
+    .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
     .tp_itemsize = 0,
     .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
diff --git a/Doc/includes/custom4.c b/Doc/includes/custom4.c
index 584992f..c7ee555 100644
--- a/Doc/includes/custom4.c
+++ b/Doc/includes/custom4.c
@@ -160,7 +160,7 @@ static PyMethodDef Custom_methods[] = {
 static PyTypeObject CustomType = {
     PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom4.Custom",
-    .tp_doc = "Custom objects",
+    .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
     .tp_itemsize = 0,
     .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
diff --git a/Doc/includes/sublist.c b/Doc/includes/sublist.c
index b2c26e7..b36dadf 100644
--- a/Doc/includes/sublist.c
+++ b/Doc/includes/sublist.c
@@ -31,7 +31,7 @@ SubList_init(SubListObject *self, PyObject *args, PyObject *kwds)
 static PyTypeObject SubListType = {
     PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "sublist.SubList",
-    .tp_doc = "SubList objects",
+    .tp_doc = PyDoc_STR("SubList objects"),
     .tp_basicsize = sizeof(SubListObject),
     .tp_itemsize = 0,
     .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-03-08-21-59-57.bpo-46962.UomDfz.rst b/Misc/NEWS.d/next/Core and Builtins/2022-03-08-21-59-57.bpo-46962.UomDfz.rst
new file mode 100644
index 0000000..98f1926
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-03-08-21-59-57.bpo-46962.UomDfz.rst
@@ -0,0 +1,9 @@
+Classes and functions that unconditionally declared their docstrings
+ignoring the `--without-doc-strings` compilation flag no longer do so.
+
+The classes affected are :class:`pickle.PickleBuffer`,
+:class:`testcapi.RecursingInfinitelyError`, and :class:`types.GenericAlias`.
+
+The functions affected are 24 methods in :mod:`ctypes`.
+
+Patch by Oleg Iarygin.
diff --git a/Misc/NEWS.d/next/Documentation/2022-03-08-22-10-38.bpo-46962.FIVe9I.rst b/Misc/NEWS.d/next/Documentation/2022-03-08-22-10-38.bpo-46962.FIVe9I.rst
new file mode 100644
index 0000000..f5b5401
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2022-03-08-22-10-38.bpo-46962.FIVe9I.rst
@@ -0,0 +1,4 @@
+All docstrings in code snippets are now wrapped into :func:`PyDoc_STR` to
+follow the guideline of `PEP 7's Documentation Strings paragraph
+<https://www.python.org/dev/peps/pep-0007/#documentation-strings>`_. Patch
+by Oleg Iarygin.
diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index ceae67e..0ffc885 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -181,7 +181,7 @@ static PyTypeObject DictRemover_Type = {
     0,                                          /* tp_as_buffer */
 /* XXX should participate in GC? */
     Py_TPFLAGS_DEFAULT,                         /* tp_flags */
-    "deletes a key from a dictionary",          /* tp_doc */
+    PyDoc_STR("deletes a key from a dictionary"), /* tp_doc */
     0,                                          /* tp_traverse */
     0,                                          /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -563,8 +563,8 @@ UnionType_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
     return StructUnionType_new(type, args, kwds, 0);
 }
 
-static const char from_address_doc[] =
-"C.from_address(integer) -> C instance\naccess a C instance at the specified address";
+PyDoc_STRVAR(from_address_doc,
+"C.from_address(integer) -> C instance\naccess a C instance at the specified address");
 
 static PyObject *
 CDataType_from_address(PyObject *type, PyObject *value)
@@ -581,8 +581,8 @@ CDataType_from_address(PyObject *type, PyObject *value)
     return PyCData_AtAddress(type, buf);
 }
 
-static const char from_buffer_doc[] =
-"C.from_buffer(object, offset=0) -> C instance\ncreate a C instance from a writeable buffer";
+PyDoc_STRVAR(from_buffer_doc,
+"C.from_buffer(object, offset=0) -> C instance\ncreate a C instance from a writeable buffer");
 
 static int
 KeepRef(CDataObject *target, Py_ssize_t index, PyObject *keep);
@@ -661,8 +661,8 @@ CDataType_from_buffer(PyObject *type, PyObject *args)
     return result;
 }
 
-static const char from_buffer_copy_doc[] =
-"C.from_buffer_copy(object, offset=0) -> C instance\ncreate a C instance from a readable buffer";
+PyDoc_STRVAR(from_buffer_copy_doc,
+"C.from_buffer_copy(object, offset=0) -> C instance\ncreate a C instance from a readable buffer");
 
 static PyObject *
 GenericPyCData_new(PyTypeObject *type, PyObject *args, PyObject *kwds);
@@ -712,8 +712,8 @@ CDataType_from_buffer_copy(PyObject *type, PyObject *args)
     return result;
 }
 
-static const char in_dll_doc[] =
-"C.in_dll(dll, name) -> C instance\naccess a C instance in a dll";
+PyDoc_STRVAR(in_dll_doc,
+"C.in_dll(dll, name) -> C instance\naccess a C instance in a dll");
 
 static PyObject *
 CDataType_in_dll(PyObject *type, PyObject *args)
@@ -774,8 +774,8 @@ CDataType_in_dll(PyObject *type, PyObject *args)
     return PyCData_AtAddress(type, address);
 }
 
-static const char from_param_doc[] =
-"Convert a Python object into a function call parameter.";
+PyDoc_STRVAR(from_param_doc,
+"Convert a Python object into a function call parameter.");
 
 static PyObject *
 CDataType_from_param(PyObject *type, PyObject *value)
@@ -929,7 +929,7 @@ PyTypeObject PyCStructType_Type = {
     PyCStructType_setattro,                     /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
-    "metatype for the CData Objects",           /* tp_doc */
+    PyDoc_STR("metatype for the CData Objects"), /* tp_doc */
     (traverseproc)CDataType_traverse,           /* tp_traverse */
     (inquiry)CDataType_clear,                   /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -971,7 +971,7 @@ static PyTypeObject UnionType_Type = {
     UnionType_setattro,                         /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
-    "metatype for the CData Objects",           /* tp_doc */
+    PyDoc_STR("metatype for the CData Objects"), /* tp_doc */
     (traverseproc)CDataType_traverse,           /* tp_traverse */
     (inquiry)CDataType_clear,                   /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -1229,7 +1229,7 @@ PyTypeObject PyCPointerType_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
-    "metatype for the Pointer Objects",         /* tp_doc */
+    PyDoc_STR("metatype for the Pointer Objects"), /* tp_doc */
     (traverseproc)CDataType_traverse,           /* tp_traverse */
     (inquiry)CDataType_clear,                   /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -1651,7 +1651,7 @@ PyTypeObject PyCArrayType_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "metatype for the Array Objects",           /* tp_doc */
+    PyDoc_STR("metatype for the Array Objects"), /* tp_doc */
     0,                                          /* tp_traverse */
     0,                                          /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -2345,7 +2345,7 @@ PyTypeObject PyCSimpleType_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "metatype for the PyCSimpleType Objects",           /* tp_doc */
+    PyDoc_STR("metatype for the PyCSimpleType Objects"), /* tp_doc */
     0,                                          /* tp_traverse */
     0,                                          /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -2627,7 +2627,7 @@ PyTypeObject PyCFuncPtrType_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
-    "metatype for C function pointers",         /* tp_doc */
+    PyDoc_STR("metatype for C function pointers"), /* tp_doc */
     (traverseproc)CDataType_traverse,           /* tp_traverse */
     (inquiry)CDataType_clear,                   /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -2932,7 +2932,7 @@ PyTypeObject PyCData_Type = {
     0,                                          /* tp_setattro */
     &PyCData_as_buffer,                         /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "XXX to be provided",                       /* tp_doc */
+    PyDoc_STR("XXX to be provided"),            /* tp_doc */
     (traverseproc)PyCData_traverse,             /* tp_traverse */
     (inquiry)PyCData_clear,                     /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -4327,7 +4327,7 @@ PyTypeObject PyCFuncPtr_Type = {
     0,                                          /* tp_setattro */
     &PyCData_as_buffer,                         /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "Function Pointer",                         /* tp_doc */
+    PyDoc_STR("Function Pointer"),              /* tp_doc */
     (traverseproc)PyCFuncPtr_traverse,          /* tp_traverse */
     (inquiry)PyCFuncPtr_clear,                  /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -4481,7 +4481,7 @@ static PyTypeObject Struct_Type = {
     0,                                          /* tp_setattro */
     &PyCData_as_buffer,                         /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "Structure base class",                     /* tp_doc */
+    PyDoc_STR("Structure base class"),          /* tp_doc */
     (traverseproc)PyCData_traverse,             /* tp_traverse */
     (inquiry)PyCData_clear,                     /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -4523,7 +4523,7 @@ static PyTypeObject Union_Type = {
     0,                                          /* tp_setattro */
     &PyCData_as_buffer,                         /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "Union base class",                         /* tp_doc */
+    PyDoc_STR("Union base class"),              /* tp_doc */
     (traverseproc)PyCData_traverse,             /* tp_traverse */
     (inquiry)PyCData_clear,                     /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -4845,7 +4845,7 @@ PyTypeObject PyCArray_Type = {
     0,                                          /* tp_setattro */
     &PyCData_as_buffer,                         /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "XXX to be provided",                       /* tp_doc */
+    PyDoc_STR("XXX to be provided"),            /* tp_doc */
     (traverseproc)PyCData_traverse,             /* tp_traverse */
     (inquiry)PyCData_clear,                     /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -5064,7 +5064,7 @@ static PyTypeObject Simple_Type = {
     0,                                          /* tp_setattro */
     &PyCData_as_buffer,                         /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "XXX to be provided",                       /* tp_doc */
+    PyDoc_STR("XXX to be provided"),            /* tp_doc */
     (traverseproc)PyCData_traverse,             /* tp_traverse */
     (inquiry)PyCData_clear,                     /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -5448,7 +5448,7 @@ PyTypeObject PyCPointer_Type = {
     0,                                          /* tp_setattro */
     &PyCData_as_buffer,                         /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "XXX to be provided",                       /* tp_doc */
+    PyDoc_STR("XXX to be provided"),            /* tp_doc */
     (traverseproc)PyCData_traverse,             /* tp_traverse */
     (inquiry)PyCData_clear,                     /* tp_clear */
     0,                                          /* tp_richcompare */
@@ -5475,12 +5475,12 @@ PyTypeObject PyCPointer_Type = {
  *  Module initialization.
  */
 
-static const char module_docs[] =
-"Create and manipulate C compatible data types in Python.";
+PyDoc_STRVAR(module_docs,
+"Create and manipulate C compatible data types in Python.");
 
 #ifdef MS_WIN32
 
-static const char comerror_doc[] = "Raised when a COM method call failed.";
+PyDoc_STRVAR(comerror_doc, "Raised when a COM method call failed.");
 
 int
 comerror_init(PyObject *self, PyObject *args, PyObject *kwds)
diff --git a/Modules/_ctypes/callbacks.c b/Modules/_ctypes/callbacks.c
index e6e1018..dbe6f29 100644
--- a/Modules/_ctypes/callbacks.c
+++ b/Modules/_ctypes/callbacks.c
@@ -65,7 +65,7 @@ PyTypeObject PyCThunk_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,                            /* tp_flags */
-    "CThunkObject",                             /* tp_doc */
+    PyDoc_STR("CThunkObject"),                  /* tp_doc */
     CThunkObject_traverse,                      /* tp_traverse */
     CThunkObject_clear,                         /* tp_clear */
     0,                                          /* tp_richcompare */
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index 9aff890..b83f736 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -1316,11 +1316,11 @@ _parse_voidp(PyObject *obj, void **address)
 
 #ifdef MS_WIN32
 
-static const char format_error_doc[] =
+PyDoc_STRVAR(format_error_doc,
 "FormatError([integer]) -> string\n\
 \n\
 Convert a win32 error code into a string. If the error code is not\n\
-given, the return value of a call to GetLastError() is used.\n";
+given, the return value of a call to GetLastError() is used.\n");
 static PyObject *format_error(PyObject *self, PyObject *args)
 {
     PyObject *result;
@@ -1340,13 +1340,13 @@ static PyObject *format_error(PyObject *self, PyObject *args)
     return result;
 }
 
-static const char load_library_doc[] =
+PyDoc_STRVAR(load_library_doc,
 "LoadLibrary(name, load_flags) -> handle\n\
 \n\
 Load an executable (usually a DLL), and return a handle to it.\n\
 The handle may be used to locate exported functions in this\n\
 module. load_flags are as defined for LoadLibraryEx in the\n\
-Windows API.\n";
+Windows API.\n");
 static PyObject *load_library(PyObject *self, PyObject *args)
 {
     const WCHAR *name;
@@ -1394,10 +1394,10 @@ _Py_COMP_DIAG_POP
 #endif
 }
 
-static const char free_library_doc[] =
+PyDoc_STRVAR(free_library_doc,
 "FreeLibrary(handle) -> void\n\
 \n\
-Free the handle of an executable previously loaded by LoadLibrary.\n";
+Free the handle of an executable previously loaded by LoadLibrary.\n");
 static PyObject *free_library(PyObject *self, PyObject *args)
 {
     void *hMod;
@@ -1417,8 +1417,8 @@ static PyObject *free_library(PyObject *self, PyObject *args)
     Py_RETURN_NONE;
 }
 
-static const char copy_com_pointer_doc[] =
-"CopyComPointer(src, dst) -> HRESULT value\n";
+PyDoc_STRVAR(copy_com_pointer_doc,
+"CopyComPointer(src, dst) -> HRESULT value\n");
 
 static PyObject *
 copy_com_pointer(PyObject *self, PyObject *args)
@@ -1656,10 +1656,10 @@ call_cdeclfunction(PyObject *self, PyObject *args)
 /*****************************************************************
  * functions
  */
-static const char sizeof_doc[] =
+PyDoc_STRVAR(sizeof_doc,
 "sizeof(C type) -> integer\n"
 "sizeof(C instance) -> integer\n"
-"Return the size in bytes of a C instance";
+"Return the size in bytes of a C instance");
 
 static PyObject *
 sizeof_func(PyObject *self, PyObject *obj)
@@ -1677,10 +1677,10 @@ sizeof_func(PyObject *self, PyObject *obj)
     return NULL;
 }
 
-static const char alignment_doc[] =
+PyDoc_STRVAR(alignment_doc,
 "alignment(C type) -> integer\n"
 "alignment(C instance) -> integer\n"
-"Return the alignment requirements of a C instance";
+"Return the alignment requirements of a C instance");
 
 static PyObject *
 align_func(PyObject *self, PyObject *obj)
@@ -1700,10 +1700,10 @@ align_func(PyObject *self, PyObject *obj)
     return NULL;
 }
 
-static const char byref_doc[] =
+PyDoc_STRVAR(byref_doc,
 "byref(C instance[, offset=0]) -> byref-object\n"
 "Return a pointer lookalike to a C instance, only usable\n"
-"as function argument";
+"as function argument");
 
 /*
  * We must return something which can be converted to a parameter,
@@ -1744,9 +1744,9 @@ byref(PyObject *self, PyObject *args)
     return (PyObject *)parg;
 }
 
-static const char addressof_doc[] =
+PyDoc_STRVAR(addressof_doc,
 "addressof(C instance) -> integer\n"
-"Return the address of the C instance internal buffer";
+"Return the address of the C instance internal buffer");
 
 static PyObject *
 addressof(PyObject *self, PyObject *obj)
diff --git a/Modules/_ctypes/cfield.c b/Modules/_ctypes/cfield.c
index 06b98a6..8582af9 100644
--- a/Modules/_ctypes/cfield.c
+++ b/Modules/_ctypes/cfield.c
@@ -320,7 +320,7 @@ PyTypeObject PyCField_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
-    "Structure/Union member",                   /* tp_doc */
+    PyDoc_STR("Structure/Union member"),        /* tp_doc */
     (traverseproc)PyCField_traverse,                    /* tp_traverse */
     (inquiry)PyCField_clear,                            /* tp_clear */
     0,                                          /* tp_richcompare */
diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index ad1b074..9084127 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -5990,7 +5990,7 @@ static PyTypeObject PyRecursingInfinitelyError_Type = {
     0,                          /* tp_setattro */
     0,                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
-    "Instantiating this exception starts infinite recursion.", /* tp_doc */
+    PyDoc_STR("Instantiating this exception starts infinite recursion."), /* tp_doc */
     0,                          /* tp_traverse */
     0,                          /* tp_clear */
     0,                          /* tp_richcompare */
diff --git a/Objects/genericaliasobject.c b/Objects/genericaliasobject.c
index acbb01c..36dfbe4 100644
--- a/Objects/genericaliasobject.c
+++ b/Objects/genericaliasobject.c
@@ -293,6 +293,11 @@ subs_tvars(PyObject *obj, PyObject *params, PyObject **argitems)
     return obj;
 }
 
+PyDoc_STRVAR(genericalias_doc,
+"Represent a PEP 585 generic type\n"
+"\n"
+"E.g. for t = list[int], t.__origin__ is list and t.__args__ is (int,).");
+
 static PyObject *
 ga_getitem(PyObject *self, PyObject *item)
 {
@@ -612,14 +617,11 @@ ga_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 
 // TODO:
 // - argument clinic?
-// - __doc__?
 // - cache?
 PyTypeObject Py_GenericAliasType = {
     PyVarObject_HEAD_INIT(&PyType_Type, 0)
     .tp_name = "types.GenericAlias",
-    .tp_doc = "Represent a PEP 585 generic type\n"
-              "\n"
-              "E.g. for t = list[int], t.__origin__ is list and t.__args__ is (int,).",
+    .tp_doc = genericalias_doc,
     .tp_basicsize = sizeof(gaobject),
     .tp_dealloc = ga_dealloc,
     .tp_repr = ga_repr,
diff --git a/Objects/picklebufobject.c b/Objects/picklebufobject.c
index a135e55..aaa852c 100644
--- a/Objects/picklebufobject.c
+++ b/Objects/picklebufobject.c
@@ -206,7 +206,7 @@ static PyMethodDef picklebuf_methods[] = {
 PyTypeObject PyPickleBuffer_Type = {
     PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "pickle.PickleBuffer",
-    .tp_doc = "Wrapper for potentially out-of-band buffers",
+    .tp_doc = PyDoc_STR("Wrapper for potentially out-of-band buffers"),
     .tp_basicsize = sizeof(PyPickleBufferObject),
     .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
     .tp_new = picklebuf_new,