Add bpy.app.binary_path_python

Access to the python binary distributed with Blender,
fallback to system python executable (matching Blender's version).

1 files changed, 30 insertions, 1 deletions

diff --git a/source/blender/python/intern/bpy_app.c b/source/blender/python/intern/bpy_app.c
index 04ab34efeb4..1cf0c44fd87 100644
--- a/source/blender/python/intern/bpy_app.c
+++ b/source/blender/python/intern/bpy_app.c
@@ -220,6 +220,33 @@ static int bpy_app_debug_set(PyObject *UNUSED(self), PyObject *value, void *clos
 	return 0;
 }
 
+
+
+PyDoc_STRVAR(bpy_app_binary_path_python_doc,
+"String, the path to the python executable (read-only)"
+);
+static PyObject *bpy_app_binary_path_python_get(PyObject *UNUSED(self), void *UNUSED(closure))
+{
+	/* refcount is held in BlenderAppType.tp_dict */
+	static PyObject *ret = NULL;
+
+	if (ret == NULL) {
+		/* only run once */
+		char fullpath[1024];
+		BKE_appdir_program_python_search(
+		        fullpath, sizeof(fullpath),
+		        PY_MAJOR_VERSION, PY_MINOR_VERSION);
+		ret = PyC_UnicodeFromByte(fullpath);
+		PyDict_SetItemString(BlenderAppType.tp_dict, "binary_path_python", ret);
+	}
+	else {
+		Py_INCREF(ret);
+	}
+
+	return ret;
+
+}
+
 PyDoc_STRVAR(bpy_app_debug_value_doc,
 "Int, number which can be set to non-zero values for testing purposes"
 );
@@ -287,7 +314,9 @@ static PyGetSetDef bpy_app_getsets[] = {
 	{(char *)"debug_wm",        bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_WM},
 	{(char *)"debug_depsgraph", bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_DEPSGRAPH},
 	{(char *)"debug_simdata",   bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_SIMDATA},
-    {(char *)"debug_gpumem",    bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_GPU_MEM},
+	{(char *)"debug_gpumem",    bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_GPU_MEM},
+
+	{(char *)"binary_path_python", bpy_app_binary_path_python_get, NULL, (char *)bpy_app_binary_path_python_doc, NULL},
 
 	{(char *)"debug_value", bpy_app_debug_value_get, bpy_app_debug_value_set, (char *)bpy_app_debug_value_doc, NULL},
 	{(char *)"tempdir", bpy_app_tempdir_get, NULL, (char *)bpy_app_tempdir_doc, NULL},