This repository has been archived on 2023-10-09. You can view files and clone it, but cannot push or open issues or pull requests.
Files
blender-archive/source/blender/python/api2_2x/Group.c

817 lines
26 KiB
C
Executable File

#include "Group.h" /* This must come first */
#include "DNA_group_types.h"
#include "DNA_scene_types.h" /* for Base */
#include "BKE_mesh.h"
#include "BKE_library.h"
#include "BKE_global.h"
#include "BKE_main.h"
#include "BKE_scene.h"
#include "BKE_group.h"
#include "BLI_blenlib.h"
#include "blendef.h"
#include "Object.h"
#include "gen_utils.h"
/*****************************************************************************/
/* Python API function prototypes for the Blender module. */
/*****************************************************************************/
static PyObject *M_Group_New( PyObject * self, PyObject * args );
PyObject *M_Group_Get( PyObject * self, PyObject * args );
PyObject *M_Group_Unlink( PyObject * self, PyObject * args );
/*****************************************************************************/
/* The following string definitions are used for documentation strings. */
/* In Python these will be written to the console when doing a */
/* Blender.Group.__doc__ */
/*****************************************************************************/
char M_Group_doc[] = "The Blender Group module\n\n\
This module provides access to **Group Data** in Blender.\n";
char M_Group_New_doc[] =
"(name) Add a new empty group";
char M_Group_Get_doc[] =
"(name) - return the group with the name 'name', returns None if not\
found.\n\
If 'name' is not specified, it returns a list of all groups.";
char M_Group_Unlink_doc[] =
"(group) - Unlink (delete) this group from Blender.";
/*****************************************************************************/
/* Python method structure definition for Blender.Object module: */
/*****************************************************************************/
struct PyMethodDef M_Group_methods[] = {
{"New", ( PyCFunction ) M_Group_New, METH_VARARGS,
M_Group_New_doc},
{"Get", ( PyCFunction ) M_Group_Get, METH_VARARGS,
M_Group_Get_doc},
{"Unlink", ( PyCFunction ) M_Group_Unlink, METH_VARARGS,
M_Group_Unlink_doc},
{NULL, NULL, 0, NULL}
};
/*****************************************************************************/
/* Python BPy_Group methods table: */
/*****************************************************************************/
static PyMethodDef BPy_Group_methods[] = {
/* name, method, flags, doc */
{NULL, NULL, 0, NULL}
};
/************************************************************************
*
* Python BPy_Object attributes
*
************************************************************************/
static PyObject *M_Group_getObjects( BPy_Group * self )
{
BPy_MGroupObSeq *seq = PyObject_NEW( BPy_MGroupObSeq, &MGroupObSeq_Type);
seq->bpygroup = self; Py_INCREF(self);
return (PyObject *)seq;
}
static void add_to_group_wraper(Group *group, Object *ob) {
Base *base;
add_to_group(group, ob);
if (!(ob->flag & OB_FROMGROUP)) { /* do this to avoid a listbase lookup */
ob->flag |= OB_FROMGROUP;
base= object_in_scene(ob, G.scene);
if (base)
base->flag |= OB_FROMGROUP;
}
}
/* only for internal use Blender.Group.Get("MyGroup").objects= []*/
static int M_Group_setObjects( BPy_Group * self, PyObject * args )
{
int i, list_size;
Group *group;
Object *blen_ob;
group= self->group;
if( PyList_Check( args ) ) {
if( EXPP_check_sequence_consistency( args, &Object_Type ) != 1)
return ( EXPP_ReturnIntError( PyExc_TypeError,
"expected a list of objects" ) );
/* remove all from the list and add the new items */
free_group(group); /* unlink all objects from this group, keep the group */
list_size= PyList_Size( args );
for( i = 0; i < list_size; i++ ) {
blen_ob= ((BPy_Object *)PyList_GET_ITEM( args, i ))->object;
add_to_group_wraper(group, blen_ob);
}
/*
} else if( args->ob_type == &MGroupObSeq_Type ) {
*/
/* todo, handle sequences here */
} else if (PyIter_Check(args)) {
PyObject *iterator = PyObject_GetIter(args);
PyObject *item;
if (iterator == NULL) {
Py_DECREF(iterator);
return EXPP_ReturnIntError( PyExc_TypeError,
"expected a list of objects, This iterator cannot be used." );
}
free_group(group); /* unlink all objects from this group, keep the group */
item = PyIter_Next(iterator);
while (item) {
if ( PyObject_TypeCheck(item, &Object_Type) ) {
blen_ob= ((BPy_Object *)item)->object;
add_to_group_wraper(group, blen_ob);
}
Py_DECREF(item);
item = PyIter_Next(iterator);
}
Py_DECREF(iterator);
if (PyErr_Occurred()) {
return EXPP_ReturnIntError( PyExc_RuntimeError,
"An unknown error occured while adding iterator objects to the group.\nThe group has been modified." );
}
} else
return EXPP_ReturnIntError( PyExc_TypeError,
"expected a list or sequence of objects" );
return 0;
}
/*****************************************************************************/
/* PythonTypeObject callback function prototypes */
/*****************************************************************************/
static void Group_dealloc( BPy_Group * obj );
static PyObject *Group_repr( BPy_Group * obj );
static int Group_compare( BPy_Group * a, BPy_Group * b );
/*****************************************************************************/
/* Python BPy_Group methods: */
/*****************************************************************************/
static int Group_setName( BPy_Group * self, PyObject * value )
{
char *name = NULL;
char buf[21];
if( !(self->group) )
return EXPP_ReturnIntError( PyExc_RuntimeError,
"Blender Group was deleted!" );
name = PyString_AsString ( value );
if( !name )
return EXPP_ReturnIntError( PyExc_TypeError,
"expected string argument" );
PyOS_snprintf( buf, sizeof( buf ), "%s", name );
rename_id( &self->group->id, buf );
return 0;
}
static PyObject *Group_getName( BPy_Group * self, PyObject * args )
{
PyObject *attr;
if( !(self->group) )
return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
"Blender Group was deleted!" ) );
attr = PyString_FromString( self->group->id.name + 2 );
if( attr )
return attr;
return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Group.name attribute" ) );
}
static PyObject *Group_getUsers( BPy_Group * self )
{
return PyInt_FromLong( self->group->id.us );
}
/*****************************************************************************/
/* Python attributes get/set structure: */
/*****************************************************************************/
static PyGetSetDef BPy_Group_getseters[] = {
{"name",
(getter)Group_getName, (setter)Group_setName,
"Group name",
NULL},
{"users",
(getter)Group_getUsers, (setter)NULL,
"Number of group users",
NULL},
{"objects",
(getter)M_Group_getObjects, (setter)M_Group_setObjects,
"objects in this group",
NULL},
{NULL,NULL,NULL,NULL,NULL} /* Sentinel */
};
/*****************************************************************************/
/* Python TypeGroup structure definition: */
/*****************************************************************************/
PyTypeObject Group_Type = {
PyObject_HEAD_INIT( NULL ) /* required py macro */
0, /* ob_size */
/* For printing, in format "<module>.<name>" */
"Blender Group", /* char *tp_name; */
sizeof( BPy_Group ), /* int tp_basicsize; */
0, /* tp_itemsize; For allocation */
/* Methods to implement standard operations */
( destructor ) Group_dealloc,/* destructor tp_dealloc; */
NULL, /* printfunc tp_print; */
NULL, /* getattrfunc tp_getattr; */
NULL, /* setattrfunc tp_setattr; */
( cmpfunc ) Group_compare, /* cmpfunc tp_compare; */
( reprfunc ) Group_repr, /* reprfunc tp_repr; */
/* Method suites for standard classes */
NULL, /* PyNumberMethods *tp_as_number; */
NULL, /* PySequenceMethods *tp_as_sequence; */
NULL, /* PyMappingMethods *tp_as_mapping; */
/* More standard operations (here for binary compatibility) */
NULL, /* hashfunc tp_hash; */
NULL, /* ternaryfunc tp_call; */
NULL, /* reprfunc tp_str; */
NULL, /* getattrofunc tp_getattro; */
NULL, /* setattrofunc tp_setattro; */
/* Functions to access object as input/output buffer */
NULL, /* PyBufferProcs *tp_as_buffer; */
/*** Flags to define presence of optional/expanded features ***/
Py_TPFLAGS_DEFAULT, /* long tp_flags; */
NULL, /* char *tp_doc; Documentation string */
/*** Assigned meaning in release 2.0 ***/
/* call function for all accessible objects */
NULL, /* traverseproc tp_traverse; */
/* delete references to contained objects */
NULL, /* inquiry tp_clear; */
/*** Assigned meaning in release 2.1 ***/
/*** rich comparisons ***/
NULL, /* richcmpfunc tp_richcompare; */
/*** weak reference enabler ***/
0, /* long tp_weaklistoffset; */
/*** Added in release 2.2 ***/
/* Iterators */
NULL, /* getiterfunc tp_iter; */
NULL, /* iternextfunc tp_iternext; */
/*** Attribute descriptor and subclassing stuff ***/
BPy_Group_methods, /* struct PyMethodDef *tp_methods; */
NULL, /* struct PyMemberDef *tp_members; */
BPy_Group_getseters, /* struct PyGetSetDef *tp_getset; */
NULL, /* struct _typeobject *tp_base; */
NULL, /* PyObject *tp_dict; */
NULL, /* descrgetfunc tp_descr_get; */
NULL, /* descrsetfunc tp_descr_set; */
0, /* long tp_dictoffset; */
NULL, /* initproc tp_init; */
NULL, /* allocfunc tp_alloc; */
NULL, /* newfunc tp_new; */
/* Low-level free-memory routine */
NULL, /* freefunc tp_free; */
/* For PyObject_IS_GC */
NULL, /* inquiry tp_is_gc; */
NULL, /* PyObject *tp_bases; */
/* method resolution order */
NULL, /* PyObject *tp_mro; */
NULL, /* PyObject *tp_cache; */
NULL, /* PyObject *tp_subclasses; */
NULL, /* PyObject *tp_weaklist; */
NULL
};
/*****************************************************************************/
/* Function: M_Group_New */
/* Python equivalent: Blender.Group.New */
/*****************************************************************************/
PyObject *M_Group_New( PyObject * self, PyObject * args )
{
char *name = "Group";
char buf[21];
BPy_Group *py_group; /* for Group Data object wrapper in Python */
struct Group *bl_group;
if( !PyArg_ParseTuple( args, "|s", &name ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"string expected as argument or nothing" );
bl_group= add_group();
if( bl_group ) /* now create the wrapper grp in Python */
py_group = ( BPy_Group * ) Group_CreatePyObject( bl_group );
else
return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't create Group Data in Blender" ) );
if( strcmp( name, "Group" ) != 0 ) {
PyOS_snprintf( buf, sizeof( buf ), "%s", name );
rename_id( &bl_group->id, buf );
}
/* user count be incremented in Group_CreatePyObject */
bl_group->id.us = 0;
return ( PyObject * ) py_group;
}
/*****************************************************************************/
/* Function: M_Group_Get */
/* Python equivalent: Blender.Group.Get */
/*****************************************************************************/
PyObject *M_Group_Get( PyObject * self, PyObject * args )
{
char *name = NULL;
Group *group_iter;
if( !PyArg_ParseTuple( args, "|s", &name ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected string argument (or nothing)" ) );
group_iter = G.main->group.first;
if( name ) { /* (name) - Search group by name */
BPy_Group *wanted_group = NULL;
while( ( group_iter ) && ( wanted_group == NULL ) ) {
if( strcmp( name, group_iter->id.name + 2 ) == 0 )
wanted_group =
( BPy_Group * )
Group_CreatePyObject( group_iter );
group_iter = group_iter->id.next;
}
if( wanted_group == NULL ) { /* Requested group doesn't exist */
char error_msg[64];
PyOS_snprintf( error_msg, sizeof( error_msg ),
"Group \"%s\" not found", name );
return ( EXPP_ReturnPyObjError
( PyExc_NameError, error_msg ) );
}
return ( PyObject * ) wanted_group;
}
else { /* () - return a list of all groups in the scene */
int index = 0;
PyObject *grouplist, *pyobj;
grouplist = PyList_New( BLI_countlist( &( G.main->group ) ) );
if( grouplist == NULL )
return ( EXPP_ReturnPyObjError( PyExc_MemoryError,
"couldn't create group list" ) );
while( group_iter ) {
pyobj = Group_CreatePyObject( group_iter );
if( !pyobj )
return ( EXPP_ReturnPyObjError
( PyExc_MemoryError,
"couldn't create Object" ) );
PyList_SET_ITEM( grouplist, index, pyobj );
group_iter = group_iter->id.next;
index++;
}
return grouplist;
}
}
/*****************************************************************************/
/* Function: M_Group_Unlink */
/* Python equivalent: Blender.Group.Unlink */
/*****************************************************************************/
PyObject *M_Group_Unlink( PyObject * self, PyObject * args )
{
PyObject *pyob=NULL;
BPy_Group *pygrp=NULL;
Group *group;
if( !PyArg_ParseTuple( args, "O!", &Group_Type, &pyob) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected a group" ) );
pygrp= (BPy_Group *)pyob;
group= pygrp->group;
if( !group )
return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
"Blender Group was deleted!" ) );
pygrp->group= NULL;
free_group(group);
unlink_group(group);
group->id.us= 0;
free_libblock( &G.main->group, group );
Py_INCREF( Py_None );
return Py_None;
}
/*****************************************************************************/
/* Function: initObject */
/*****************************************************************************/
PyObject *Group_Init( void )
{
PyObject *submodule;
if( PyType_Ready( &Group_Type ) < 0 )
return NULL;
if( PyType_Ready( &MGroupObSeq_Type ) < 0 )
return NULL;
submodule = Py_InitModule3( "Blender.Group", M_Group_methods,
M_Group_doc );
//Add SUBMODULES to the module
//PyDict_SetItemString(dict, "Constraint", Constraint_Init()); //creates a *new* module
return submodule;
}
/*****************************************************************************/
/* Function: Group_CreatePyObject */
/* Description: This function will create a new BlenObject from an existing */
/* Object structure. */
/*****************************************************************************/
PyObject *Group_CreatePyObject( struct Group * grp )
{
BPy_Group *pygrp;
if( !grp )
return EXPP_incr_ret( Py_None );
pygrp =
( BPy_Group * ) PyObject_NEW( BPy_Group, &Group_Type );
if( pygrp == NULL ) {
return ( NULL );
}
pygrp->group = grp;
return ( ( PyObject * ) pygrp );
}
/*****************************************************************************/
/* Function: Group_CheckPyObject */
/* Description: This function returns true when the given PyObject is of the */
/* type Group. Otherwise it will return false. */
/*****************************************************************************/
int Group_CheckPyObject( PyObject * py_grp)
{
return ( py_grp->ob_type == &Group_Type );
}
/*****************************************************************************/
/* Function: Group_FromPyObject */
/* Description: This function returns the Blender group from the given */
/* PyObject. */
/*****************************************************************************/
Group *Group_FromPyObject( PyObject * py_grp )
{
BPy_Group *blen_grp;
blen_grp = ( BPy_Group * ) py_grp;
return ( blen_grp->group );
}
/*****************************************************************************/
/* Description: Returns the object with the name specified by the argument */
/* name. Note that the calling function has to remove the first */
/* two characters of the object name. These two characters */
/* specify the type of the object (OB, ME, WO, ...) */
/* The function will return NULL when no object with the given */
/* name is found. */
/*****************************************************************************/
Group *GetGroupByName( char *name )
{
Group *grp_iter;
grp_iter = G.main->group.first;
while( grp_iter ) {
if( StringEqual( name, GetIdName( &( grp_iter->id ) ) ) ) {
return ( grp_iter );
}
grp_iter = grp_iter->id.next;
}
/* There is no object with the given name */
return ( NULL );
}
/*****************************************************************************/
/* Function: Group_dealloc */
/* Description: This is a callback function for the BlenObject type. It is */
/* the destructor function. */
/*****************************************************************************/
static void Group_dealloc( BPy_Group * grp )
{
PyObject_DEL( grp );
}
/*****************************************************************************/
/* Function: Group_compare */
/* Description: This is a callback function for the BPy_Group type. It */
/* compares two Group_Type objects. Only the "==" and "!=" */
/* comparisons are meaninful. Returns 0 for equality and -1 if */
/* they don't point to the same Blender Object struct. */
/* In Python it becomes 1 if they are equal, 0 otherwise. */
/*****************************************************************************/
static int Group_compare( BPy_Group * a, BPy_Group * b )
{
Group *pa = a->group, *pb = b->group;
return ( pa == pb ) ? 0 : -1;
}
/*****************************************************************************/
/* Function: Group_repr */
/* Description: This is a callback function for the BPy_Group type. It */
/* builds a meaninful string to represent object objects. */
/*****************************************************************************/
static PyObject *Group_repr( BPy_Group * self )
{
return PyString_FromFormat( "[Group \"%s\"]",
self->group->id.name + 2 );
}
/************************************************************************
*
* GroupOb sequence
*
************************************************************************/
/*
* create a thin MGroupOb object
*/
static PyObject *MGroupObSeq_CreatePyObject( Group *group, int i )
{
int index=0;
PyObject *bpy_obj;
GroupObject *gob;
for (gob= group->gobject.first; gob && i!=index; gob= gob->next, index++) {}
if (!(gob))
return EXPP_ReturnPyObjError( PyExc_IndexError,
"array index out of range" );
bpy_obj = Object_CreatePyObject( gob->ob );
if( !bpy_obj )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"PyObject_New() failed" );
return (PyObject *)bpy_obj;
}
static int MGroupObSeq_len( BPy_MGroupObSeq * self )
{
return BLI_countlist( &( self->bpygroup->group->gobject ) );
}
/*
* retrive a single MGroupOb from somewhere in the GroupObex list
*/
static PyObject *MGroupObSeq_item( BPy_MGroupObSeq * self, int i )
{
return MGroupObSeq_CreatePyObject( self->bpygroup->group, i );
}
static PySequenceMethods MGroupObSeq_as_sequence = {
( inquiry ) MGroupObSeq_len, /* sq_length */
( binaryfunc ) 0, /* sq_concat */
( intargfunc ) 0, /* sq_repeat */
( intargfunc ) MGroupObSeq_item, /* sq_item */
( intintargfunc ) 0, /* sq_slice */
( intobjargproc ) 0, /* sq_ass_item */
( intintobjargproc ) 0, /* sq_ass_slice */
0,0,0,
};
/************************************************************************
*
* Python MGroupObSeq_Type iterator (iterates over GroupObjects)
*
************************************************************************/
/*
* Initialize the interator index
*/
static PyObject *MGroupObSeq_getIter( BPy_MGroupObSeq * self )
{
self->iter = self->bpygroup->group->gobject.first;
return EXPP_incr_ret ( (PyObject *) self );
}
/*
* Return next MGroupOb.
*/
static PyObject *MGroupObSeq_nextIter( BPy_MGroupObSeq * self )
{
PyObject *object;
if( !(self->iter) || !(self->bpygroup->group) )
return EXPP_ReturnPyObjError( PyExc_StopIteration,
"iterator at end" );
object= Object_CreatePyObject( self->iter->ob );
self->iter= self->iter->next;
return object;
}
static PyObject *MGroupObSeq_append( BPy_MGroupObSeq * self, PyObject *args )
{
PyObject *pyobj;
Object *blen_ob;
Base *base= NULL;
if( !PyArg_ParseTuple( args, "O!", &Object_Type, &pyobj ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected a python object as an argument" ) );
blen_ob = ( ( BPy_Object * ) pyobj )->object;
base= object_in_scene(blen_ob, G.scene);
add_to_group_wraper(self->bpygroup->group, blen_ob); /* this checks so as not to add the object into the group twice*/
return EXPP_incr_ret( Py_None );
}
static PyObject *MGroupObSeq_remove( BPy_MGroupObSeq * self, PyObject *args )
{
PyObject *pyobj;
Object *blen_ob;
Base *base= NULL;
if( !(self->bpygroup->group) )
return (EXPP_ReturnPyObjError( PyExc_RuntimeError,
"Blender Group was deleted!" ));
if( !PyArg_ParseTuple( args, "O!", &Object_Type, &pyobj ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected a python object as an argument" ) );
blen_ob = ( ( BPy_Object * ) pyobj )->object;
rem_from_group(self->bpygroup->group, blen_ob);
if(find_group(blen_ob)==NULL) {
blen_ob->flag &= ~OB_FROMGROUP;
base= object_in_scene(blen_ob, G.scene);
if (base)
base->flag &= ~OB_FROMGROUP;
}
return EXPP_incr_ret( Py_None );
}
static struct PyMethodDef BPy_MGroupObSeq_methods[] = {
{"append", (PyCFunction)MGroupObSeq_append, METH_VARARGS,
"add object to group"},
{"remove", (PyCFunction)MGroupObSeq_remove, METH_VARARGS,
"remove object from group"},
{NULL, NULL, 0, NULL}
};
/************************************************************************
*
* Python MGroupObSeq_Type standard operations
*
************************************************************************/
static void MGroupObSeq_dealloc( BPy_MGroupObSeq * self )
{
Py_DECREF(self->bpygroup);
PyObject_DEL( self );
}
/*****************************************************************************/
/* Python MGroupObSeq_Type structure definition: */
/*****************************************************************************/
PyTypeObject MGroupObSeq_Type = {
PyObject_HEAD_INIT( NULL ) /* required py macro */
0, /* ob_size */
/* For printing, in format "<module>.<name>" */
"Blender MGroupObSeq", /* char *tp_name; */
sizeof( BPy_MGroupObSeq ), /* int tp_basicsize; */
0, /* tp_itemsize; For allocation */
/* Methods to implement standard operations */
( destructor ) MGroupObSeq_dealloc,/* destructor tp_dealloc; */
NULL, /* printfunc tp_print; */
NULL, /* getattrfunc tp_getattr; */
NULL, /* setattrfunc tp_setattr; */
NULL, /* cmpfunc tp_compare; */
NULL, /* reprfunc tp_repr; */
/* Method suites for standard classes */
NULL, /* PyNumberMethods *tp_as_number; */
&MGroupObSeq_as_sequence, /* PySequenceMethods *tp_as_sequence; */
NULL, /* PyMappingMethods *tp_as_mapping; */
/* More standard operations (here for binary compatibility) */
NULL, /* hashfunc tp_hash; */
NULL, /* ternaryfunc tp_call; */
NULL, /* reprfunc tp_str; */
NULL, /* getattrofunc tp_getattro; */
NULL, /* setattrofunc tp_setattro; */
/* Functions to access object as input/output buffer */
NULL, /* PyBufferProcs *tp_as_buffer; */
/*** Flags to define presence of optional/expanded features ***/
Py_TPFLAGS_DEFAULT, /* long tp_flags; */
NULL, /* char *tp_doc; Documentation string */
/*** Assigned meaning in release 2.0 ***/
/* call function for all accessible objects */
NULL, /* traverseproc tp_traverse; */
/* delete references to contained objects */
NULL, /* inquiry tp_clear; */
/*** Assigned meaning in release 2.1 ***/
/*** rich comparisons ***/
NULL, /* richcmpfunc tp_richcompare; */
/*** weak reference enabler ***/
0, /* long tp_weaklistoffset; */
/*** Added in release 2.2 ***/
/* Iterators */
( getiterfunc) MGroupObSeq_getIter, /* getiterfunc tp_iter; */
( iternextfunc ) MGroupObSeq_nextIter, /* iternextfunc tp_iternext; */
/*** Attribute descriptor and subclassing stuff ***/
BPy_MGroupObSeq_methods, /* struct PyMethodDef *tp_methods; */
NULL, /* struct PyMemberDef *tp_members; */
NULL, /* struct PyGetSetDef *tp_getset; */
NULL, /* struct _typeobject *tp_base; */
NULL, /* PyObject *tp_dict; */
NULL, /* descrgetfunc tp_descr_get; */
NULL, /* descrsetfunc tp_descr_set; */
0, /* long tp_dictoffset; */
NULL, /* initproc tp_init; */
NULL, /* allocfunc tp_alloc; */
NULL, /* newfunc tp_new; */
/* Low-level free-memory routine */
NULL, /* freefunc tp_free; */
/* For PyObject_IS_GC */
NULL, /* inquiry tp_is_gc; */
NULL, /* PyObject *tp_bases; */
/* method resolution order */
NULL, /* PyObject *tp_mro; */
NULL, /* PyObject *tp_cache; */
NULL, /* PyObject *tp_subclasses; */
NULL, /* PyObject *tp_weaklist; */
NULL
};