bpo-36763: Implement the PEP 587 (GH-13592)

* Add a whole new documentation page:
  "Python Initialization Configuration"
* PyWideStringList_Append() return type is now PyStatus,
  instead of int
* PyInterpreterState_New() now calls PyConfig_Clear() if
  PyConfig_InitPythonConfig() fails.
* Rename files:

  * Python/coreconfig.c => Python/initconfig.c
  * Include/cpython/coreconfig.h => Include/cpython/initconfig.h
  * Include/internal/: pycore_coreconfig.h => pycore_initconfig.h

* Rename structures

  * _PyCoreConfig => PyConfig
  * _PyPreConfig => PyPreConfig
  * _PyInitError => PyStatus
  * _PyWstrList => PyWideStringList

* Rename PyConfig fields:

  * use_module_search_paths => module_search_paths_set
  * module_search_path_env => pythonpath_env

* Rename PyStatus field: _func => func
* PyInterpreterState: rename core_config field to config
* Rename macros and functions:

  * _PyCoreConfig_SetArgv() => PyConfig_SetBytesArgv()
  * _PyCoreConfig_SetWideArgv() => PyConfig_SetArgv()
  * _PyCoreConfig_DecodeLocale() => PyConfig_SetBytesString()
  * _PyInitError_Failed() => PyStatus_Exception()
  * _Py_INIT_ERROR_TYPE_xxx enums => _PyStatus_TYPE_xxx
  * _Py_UnixMain() => Py_BytesMain()
  * _Py_ExitInitError() => Py_ExitStatusException()
  * _Py_PreInitializeFromArgs() => Py_PreInitializeFromBytesArgs()
  * _Py_PreInitializeFromWideArgs() => Py_PreInitializeFromArgs()
  * _Py_PreInitialize() => Py_PreInitialize()
  * _Py_RunMain() => Py_RunMain()
  * _Py_InitializeFromConfig() => Py_InitializeFromConfig()
  * _Py_INIT_XXX() => _PyStatus_XXX()
  * _Py_INIT_FAILED() => _PyStatus_EXCEPTION()

* Rename 'err' PyStatus variables to 'status'
* Convert RUN_CODE() macro to config_run_code() static inline function
* Remove functions:

  * _Py_InitializeFromArgs()
  * _Py_InitializeFromWideArgs()
  * _PyInterpreterState_GetCoreConfig()

1 files changed, 5 insertions, 5 deletions

diff --git a/Objects/object.c b/Objects/object.c
index 6d79165..270716f 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -2,7 +2,7 @@
 /* Generic object operations; and implementation of None */
 
 #include "Python.h"
-#include "pycore_coreconfig.h"
+#include "pycore_initconfig.h"
 #include "pycore_object.h"
 #include "pycore_pystate.h"
 #include "pycore_context.h"
@@ -124,7 +124,7 @@ void
 _Py_dump_counts(FILE* f)
 {
     PyInterpreterState *interp = _PyInterpreterState_Get();
-    if (!interp->core_config.show_alloc_count) {
+    if (!interp->config.show_alloc_count) {
         return;
     }
 
@@ -1767,13 +1767,13 @@ PyObject _Py_NotImplementedStruct = {
     1, &_PyNotImplemented_Type
 };
 
-_PyInitError
+PyStatus
 _PyTypes_Init(void)
 {
 #define INIT_TYPE(TYPE, NAME) \
     do { \
         if (PyType_Ready(TYPE) < 0) { \
-            return _Py_INIT_ERR("Can't initialize " NAME " type"); \
+            return _PyStatus_ERR("Can't initialize " NAME " type"); \
         } \
     } while (0)
 
@@ -1843,7 +1843,7 @@ _PyTypes_Init(void)
     INIT_TYPE(&PyCoro_Type, "coroutine");
     INIT_TYPE(&_PyCoroWrapper_Type, "coroutine wrapper");
     INIT_TYPE(&_PyInterpreterID_Type, "interpreter ID");
-    return _Py_INIT_OK();
+    return _PyStatus_OK();
 
 #undef INIT_TYPE
 }