PyTypeObject

Type objects contain a string containing the type name (to help somewhat in debugging), the allocation parameters (see PyObject_New() and PyObject_NewVar()), and methods for accessing objects of the type. Methods are optional, a nil pointer meaning that particular kind of access is not available for this type. The Py_DECREF() macro uses the tp_dealloc method without checking for a nil pointer; it should always be implemented except if the implementation can guarantee that the reference count will never reach zero (e.g., for statically allocated type objects).

NB: the methods for certain type groups are now contained in separate method blocks.

extern (C)

struct PyTypeObject {

PyVarObject ob_base;

Py_ssize_t ob_refcnt;

PyTypeObject* ob_type;

Py_ssize_t ob_size;

const(char)* tp_name;

Py_ssize_t tp_basicsize;

Py_ssize_t tp_itemsize;

destructor tp_dealloc;

printfunc tp_print;

getattrfunc tp_getattr;

setattrfunc tp_setattr;

void* tp_reserved;

cmpfunc tp_compare;

reprfunc tp_repr;

PyNumberMethods* tp_as_number;

PySequenceMethods* tp_as_sequence;

PyMappingMethods* tp_as_mapping;

hashfunc tp_hash;

ternaryfunc tp_call;

reprfunc tp_str;

getattrofunc tp_getattro;

setattrofunc tp_setattro;

PyBufferProcs* tp_as_buffer;

C_long tp_flags;

const(char)* tp_doc;

traverseproc tp_traverse;

inquiry tp_clear;

richcmpfunc tp_richcompare;

Py_ssize_t tp_weaklistoffset;

C_long tp_weaklistoffset;

getiterfunc tp_iter;

iternextfunc tp_iternext;

PyMethodDef* tp_methods;

PyMemberDef* tp_members;

PyGetSetDef* tp_getset;

PyTypeObject* tp_base;

PyObject* tp_dict;

descrgetfunc tp_descr_get;

descrsetfunc tp_descr_set;

Py_ssize_t tp_dictoffset;

C_long tp_dictoffset;

initproc tp_init;

allocfunc tp_alloc;

newfunc tp_new;

freefunc tp_free;

inquiry tp_is_gc;

PyObject* tp_bases;

PyObject* tp_mro;

PyObject* tp_cache;

PyObject* tp_subclasses;

PyObject* tp_weaklist;

destructor tp_del;

uint tp_version_tag;

}

Members

Variables

tp_alloc allocfunc tp_alloc;: Attribute descriptor and subclassing stuff
tp_as_buffer PyBufferProcs* tp_as_buffer;: Functions to access object as input/output buffer
tp_as_mapping PyMappingMethods* tp_as_mapping;: Method suites for standard classes
tp_as_number PyNumberMethods* tp_as_number;
tp_as_sequence PySequenceMethods* tp_as_sequence;: Method suites for standard classes
tp_base PyTypeObject* tp_base;: Attribute descriptor and subclassing stuff
tp_bases PyObject* tp_bases;: _
tp_basicsize Py_ssize_t tp_basicsize;: For allocation
tp_cache PyObject* tp_cache;: _
tp_call ternaryfunc tp_call;: More standard operations (here for binary compatibility)
tp_clear inquiry tp_clear;: delete references to contained objects
tp_dealloc destructor tp_dealloc;: Methods to implement standard operations
tp_del destructor tp_del;: _
tp_descr_get descrgetfunc tp_descr_get;
tp_descr_set descrsetfunc tp_descr_set;
tp_dict PyObject* tp_dict;
tp_dictoffset Py_ssize_t tp_dictoffset;: Attribute descriptor and subclassing stuff
tp_doc const(char)* tp_doc;: Documentation string
tp_flags C_long tp_flags;: Flags to define presence of optional/expanded features
tp_free freefunc tp_free;: Low-level free-memory routine
tp_getattr getattrfunc tp_getattr;: Methods to implement standard operations
tp_getattro getattrofunc tp_getattro;: More standard operations (here for binary compatibility)
tp_getset PyGetSetDef* tp_getset;: Attribute descriptor and subclassing stuff
tp_hash hashfunc tp_hash;: More standard operations (here for binary compatibility)
tp_init initproc tp_init;: Attribute descriptor and subclassing stuff
tp_is_gc inquiry tp_is_gc;: For PyObject_IS_GC
tp_itemsize Py_ssize_t tp_itemsize;: For allocation
tp_iter getiterfunc tp_iter;
tp_iternext iternextfunc tp_iternext;: Iterators
tp_members PyMemberDef* tp_members;: Attribute descriptor and subclassing stuff
tp_methods PyMethodDef* tp_methods;: Attribute descriptor and subclassing stuff
tp_mro PyObject* tp_mro;: method resolution order
tp_name const(char)* tp_name;: For printing, in format "<module>.<name>"
tp_new newfunc tp_new;: Attribute descriptor and subclassing stuff
tp_print printfunc tp_print;
tp_repr reprfunc tp_repr;
tp_reserved void* tp_reserved;: Methods to implement standard operations
tp_richcompare richcmpfunc tp_richcompare;: rich comparisons
tp_setattr setattrfunc tp_setattr;: Methods to implement standard operations
tp_setattro setattrofunc tp_setattro;
tp_str reprfunc tp_str;: More standard operations (here for binary compatibility)
tp_subclasses PyObject* tp_subclasses;: _
tp_traverse traverseproc tp_traverse;: call function for all accessible objects
tp_version_tag uint tp_version_tag;: Type attribute cache version tag. Added in version 2.6
tp_weaklist PyObject* tp_weaklist;: _
tp_weaklistoffset Py_ssize_t tp_weaklistoffset;: weak reference enabler

PyTypeObject

Members

Variables

Meta

Source