commit 3e7abb113568b07627e00a7a4e5df5e3cfefccfe
Author: CYBERDEViL <cyberdevil@notabug.org>
Date:   Sun Dec 17 14:37:36 2023 +0100

    python3.11: eval.h has been removed from Python 3.11
    
    And compile.h is included with Python.h

commit 5b4980bb042bf23779de97f38d6678f483a6f23e
Author: CYBERDEViL <cyberdevil@notabug.org>
Date:   Sat Dec 16 02:31:55 2023 +0100

    python3.11: Remove invalid use of Py_TPFLAGS_HAVE_GC flag
    
    Error otherwise thrown:
    
      SystemError: type bpy_struct has the Py_TPFLAGS_HAVE_GC flag but has
      no traverse function
    
    This is for Python 3.11, see https://docs.python.org/3/whatsnew/3.11.html
    """
    The PyType_Ready() function now raises an error if a type is defined
    with the Py_TPFLAGS_HAVE_GC flag set but has no traverse function
     (PyTypeObject.tp_traverse). (Contributed by Victor Stinner in
     bpo-44263.)
    """

commit 54c261ddfcb7221b1e6828c0a6a29a8b07f57043
Author: CYBERDEViL <cyberdevil@notabug.org>
Date:   Sat Dec 16 01:12:28 2023 +0100

    python3.11: "Python: support v3.11 (beta) with changes to PyFrameObj.."
    
    Partially applied Blender upstream ref: 780c0ea097444c3be60314dffd203c099720badb

diff --git a/blender-2.79b/source/blender/python/generic/py_capi_utils.c b/blender-2.79b/source/blender/python/generic/py_capi_utils.c
index 17cb657..10a38da 100644
--- a/blender-2.79b/source/blender/python/generic/py_capi_utils.c
+++ b/blender-2.79b/source/blender/python/generic/py_capi_utils.c
@@ -282,17 +282,21 @@ void PyC_StackSpit(void)
 void PyC_FileAndNum(const char **filename, int *lineno)
 {
 	PyFrameObject *frame;
-	
+	PyCodeObject *code;
+
 	if (filename) *filename = NULL;
 	if (lineno)   *lineno = -1;
 
-	if (!(frame = PyThreadState_GET()->frame)) {
+	if (!(frame = PyEval_GetFrame())) {
+		return;
+	}
+	if (!(code = PyFrame_GetCode(frame))) {
 		return;
 	}
 
 	/* when executing a script */
 	if (filename) {
-		*filename = PyUnicode_AsUTF8(frame->f_code->co_filename);
+		*filename = PyUnicode_AsUTF8(code->co_filename);
 	}
 
 	/* when executing a module */
diff --git a/blender-2.79b/source/blender/python/intern/bpy_app_handlers.c b/blender-2.79b/source/blender/python/intern/bpy_app_handlers.c
index 90aa22d..bcabd09 100644
--- a/blender-2.79b/source/blender/python/intern/bpy_app_handlers.c
+++ b/blender-2.79b/source/blender/python/intern/bpy_app_handlers.c
@@ -155,8 +155,7 @@ static PyTypeObject BPyPersistent_Type = {
 	0,                                          /* tp_getattro */
 	0,                                          /* tp_setattro */
 	0,                                          /* tp_as_buffer */
-	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
-	Py_TPFLAGS_BASETYPE,                        /* tp_flags */
+	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,   /* tp_flags */
 	0,                                          /* tp_doc */
 	0,                                          /* tp_traverse */
 	0,                                          /* tp_clear */
diff --git a/blender-2.79b/source/blender/python/intern/bpy_rna.c b/blender-2.79b/source/blender/python/intern/bpy_rna.c
index 722e23d..f2f0ed7 100644
--- a/blender-2.79b/source/blender/python/intern/bpy_rna.c
+++ b/blender-2.79b/source/blender/python/intern/bpy_rna.c
@@ -5753,7 +5753,7 @@ PyTypeObject pyrna_struct_Type = {
 	NULL,                       /* PyBufferProcs *tp_as_buffer; */
 
 	/*** Flags to define presence of optional/expanded features ***/
-	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* long tp_flags; */
+	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* long tp_flags; */
 
 	NULL,                       /*  char *tp_doc;  Documentation string */
 	/*** Assigned meaning in release 2.0 ***/
diff --git a/blender-2.79b/source/blender/python/intern/bpy_traceback.c b/blender-2.79b/source/blender/python/intern/bpy_traceback.c
index fedf889..462438f 100644
--- a/blender-2.79b/source/blender/python/intern/bpy_traceback.c
+++ b/blender-2.79b/source/blender/python/intern/bpy_traceback.c
@@ -39,7 +39,9 @@
 
 static const char *traceback_filepath(PyTracebackObject *tb, PyObject **coerce)
 {
-	return PyBytes_AS_STRING((*coerce = PyUnicode_EncodeFSDefault(tb->tb_frame->f_code->co_filename)));
+	PyCodeObject *code = PyFrame_GetCode(tb->tb_frame);
+	*coerce = PyUnicode_EncodeFSDefault(code->co_filename);
+	return PyBytes_AS_STRING(*coerce);
 }
 
 /* copied from pythonrun.c, 3.4.0 */
diff --git a/blender-2.79b/source/gameengine/GameLogic/SCA_PythonController.cpp b/blender-2.79b/source/gameengine/GameLogic/SCA_PythonController.cpp
index 6aaf6f0..f8a9cc4 100644
--- a/blender-2.79b/source/gameengine/GameLogic/SCA_PythonController.cpp
+++ b/blender-2.79b/source/gameengine/GameLogic/SCA_PythonController.cpp
@@ -41,11 +41,6 @@
 #include "SCA_IActuator.h"
 #include "EXP_PyObjectPlus.h"
 
-#ifdef WITH_PYTHON
-#include "compile.h"
-#include "eval.h"
-#endif // WITH_PYTHON
-
 #include <algorithm>