bpo-39372: Clean header files of declared interfaces with no implementations (pythonGH-18037)

The public API symbols being removed are:

_PyBytes_InsertThousandsGroupingLocale, _PyBytes_InsertThousandsGrouping, _Py_InitializeFromArgs, _Py_InitializeFromWideArgs, _PyFloat_Repr, _PyFloat_Digits,
_PyFloat_DigitsInit, PyFrame_ExtendStack, _PyAIterWrapper_Type, PyNullImporter_Type, PyCmpWrapper_Type, PySortWrapper_Type, PyNoArgsFunction.

Author: pablogsal

Include/bytesobject.h

@@ -106,28 +106,6 @@ PyAPI_FUNC(int) PyBytes_AsStringAndSize(
                            strings) */
     );
 
-/* Using the current locale, insert the thousands grouping
-   into the string pointed to by buffer.  For the argument descriptions,
-   see Objects/stringlib/localeutil.h */
-#ifndef Py_LIMITED_API
-PyAPI_FUNC(Py_ssize_t) _PyBytes_InsertThousandsGroupingLocale(char *buffer,
-                                                   Py_ssize_t n_buffer,
-                                                   char *digits,
-                                                   Py_ssize_t n_digits,
-                                                   Py_ssize_t min_width);
-
-/* Using explicit passed-in values, insert the thousands grouping
-   into the string pointed to by buffer.  For the argument descriptions,
-   see Objects/stringlib/localeutil.h */
-PyAPI_FUNC(Py_ssize_t) _PyBytes_InsertThousandsGrouping(char *buffer,
-                                                   Py_ssize_t n_buffer,
-                                                   char *digits,
-                                                   Py_ssize_t n_digits,
-                                                   Py_ssize_t min_width,
-                                                   const char *grouping,
-                                                   const char *thousands_sep);
-#endif
-
 /* Flags used by string formatting */
 #define F_LJUST (1<<0)
 #define F_SIGN  (1<<1)

Include/cpython/pylifecycle.h

@@ -32,14 +32,6 @@ PyAPI_FUNC(int) _Py_IsCoreInitialized(void);
 
 PyAPI_FUNC(PyStatus) Py_InitializeFromConfig(
     const PyConfig *config);
-PyAPI_FUNC(PyStatus) _Py_InitializeFromArgs(
-    const PyConfig *config,
-    Py_ssize_t argc,
-    char * const *argv);
-PyAPI_FUNC(PyStatus) _Py_InitializeFromWideArgs(
-    const PyConfig *config,
-    Py_ssize_t argc,
-    wchar_t * const *argv);
 PyAPI_FUNC(PyStatus) _Py_InitializeMain(void);
 
 PyAPI_FUNC(int) Py_RunMain(void);

Include/floatobject.h

@@ -88,15 +88,6 @@ PyAPI_FUNC(int) _PyFloat_Pack2(double x, unsigned char *p, int le);
 PyAPI_FUNC(int) _PyFloat_Pack4(double x, unsigned char *p, int le);
 PyAPI_FUNC(int) _PyFloat_Pack8(double x, unsigned char *p, int le);
 
-/* Needed for the old way for marshal to store a floating point number.
-   Returns the string length copied into p, -1 on error.
- */
-PyAPI_FUNC(int) _PyFloat_Repr(double x, char *p, size_t len);
-
-/* Used to get the important decimal digits of a double */
-PyAPI_FUNC(int) _PyFloat_Digits(char *buf, double v, int *signum);
-PyAPI_FUNC(void) _PyFloat_DigitsInit(void);
-
 /* The unpack routines read 2, 4 or 8 bytes, starting at p.  le is a bool
  * argument, true if the string is in little-endian format (exponent
  * last, at p+1, p+3 or p+7), false if big-endian (exponent first, at p).

Include/frameobject.h

@@ -67,10 +67,6 @@ PyFrameObject* _PyFrame_New_NoTrack(PyThreadState *, PyCodeObject *,
 PyAPI_FUNC(void) PyFrame_BlockSetup(PyFrameObject *, int, int, int);
 PyAPI_FUNC(PyTryBlock *) PyFrame_BlockPop(PyFrameObject *);
 
-/* Extend the value stack */
-
-PyAPI_FUNC(PyObject **) PyFrame_ExtendStack(PyFrameObject *, int, int);
-
 /* Conversions between "fast locals" and locals in dictionary */
 
 PyAPI_FUNC(void) PyFrame_LocalsToFast(PyFrameObject *, int);

Include/genobject.h

@@ -58,8 +58,6 @@ typedef struct {
 PyAPI_DATA(PyTypeObject) PyCoro_Type;
 PyAPI_DATA(PyTypeObject) _PyCoroWrapper_Type;
 
-PyAPI_DATA(PyTypeObject) _PyAIterWrapper_Type;
-
 #define PyCoro_CheckExact(op) (Py_TYPE(op) == &PyCoro_Type)
 PyObject *_PyCoro_GetAwaitableIter(PyObject *o);
 PyAPI_FUNC(PyObject *) PyCoro_New(struct _frame *,

Include/import.h

@@ -81,8 +81,6 @@ PyAPI_FUNC(int) PyImport_ImportFrozenModule(
     const char *name            /* UTF-8 encoded string */
     );
 
-PyAPI_DATA(PyTypeObject) PyNullImporter_Type;
-
 PyAPI_FUNC(int) PyImport_AppendInittab(
     const char *name,           /* ASCII encoded string */
     PyObject* (*initfunc)(void)

Include/internal/pycore_pathconfig.h

@@ -47,8 +47,6 @@ PyAPI_DATA(wchar_t*) _Py_dll_path;
 #endif
 
 extern void _PyPathConfig_ClearGlobal(void);
-extern PyStatus _PyPathConfig_SetGlobal(
-    const struct _PyPathConfig *pathconfig);
 
 extern PyStatus _PyPathConfig_Calculate(
     _PyPathConfig *pathconfig,

Include/iterobject.h

@@ -7,7 +7,6 @@ extern "C" {
 
 PyAPI_DATA(PyTypeObject) PySeqIter_Type;
 PyAPI_DATA(PyTypeObject) PyCallIter_Type;
-PyAPI_DATA(PyTypeObject) PyCmpWrapper_Type;
 
 #define PySeqIter_Check(op) (Py_TYPE(op) == &PySeqIter_Type)
 

Include/listobject.h

@@ -43,7 +43,6 @@ typedef struct {
 PyAPI_DATA(PyTypeObject) PyList_Type;
 PyAPI_DATA(PyTypeObject) PyListIter_Type;
 PyAPI_DATA(PyTypeObject) PyListRevIter_Type;
-PyAPI_DATA(PyTypeObject) PySortWrapper_Type;
 
 #define PyList_Check(op) \
     PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_LIST_SUBCLASS)

Include/methodobject.h

@@ -22,8 +22,6 @@ typedef PyObject *(*PyCFunctionWithKeywords)(PyObject *, PyObject *,
 typedef PyObject *(*_PyCFunctionFastWithKeywords) (PyObject *,
                                                    PyObject *const *, Py_ssize_t,
                                                    PyObject *);
-typedef PyObject *(*PyNoArgsFunction)(PyObject *);
-
 PyAPI_FUNC(PyCFunction) PyCFunction_GetFunction(PyObject *);
 PyAPI_FUNC(PyObject *) PyCFunction_GetSelf(PyObject *);
 PyAPI_FUNC(int) PyCFunction_GetFlags(PyObject *);