Allocating Objects on the Heap
******************************

PyObject *_PyObject_New(PyTypeObject *type)
    *Επιστρεφόμενη τιμή: New reference.*

PyVarObject *_PyObject_NewVar(PyTypeObject *type, Py_ssize_t size)
    *Επιστρεφόμενη τιμή: New reference.*

PyObject *PyObject_Init(PyObject *op, PyTypeObject *type)
    *Επιστρεφόμενη τιμή: Borrowed reference.** Μέρος του Σταθερό ABI.*

   Initialize a newly allocated object *op* with its type and initial
   reference.  Returns the initialized object.  If *type* indicates
   that the object participates in the cyclic garbage detector, it is
   added to the detector's set of observed objects. Other fields of
   the object are not affected.

PyVarObject *PyObject_InitVar(PyVarObject *op, PyTypeObject *type, Py_ssize_t size)
    *Επιστρεφόμενη τιμή: Borrowed reference.** Μέρος του Σταθερό ABI.*

   This does everything "PyObject_Init()" does, and also initializes
   the length information for a variable-size object.

PyObject_New(TYPE, typeobj)

   Allocate a new Python object using the C structure type *TYPE* and
   the Python type object *typeobj* ("PyTypeObject*"). Fields not
   defined by the Python object header are not initialized. The caller
   will own the only reference to the object (i.e. its reference count
   will be one). The size of the memory allocation is determined from
   the "tp_basicsize" field of the type object.

PyObject_NewVar(TYPE, typeobj, size)

   Allocate a new Python object using the C structure type *TYPE* and
   the Python type object *typeobj* ("PyTypeObject*"). Fields not
   defined by the Python object header are not initialized.  The
   allocated memory allows for the *TYPE* structure plus *size*
   ("Py_ssize_t") fields of the size given by the "tp_itemsize" field
   of *typeobj*.  This is useful for implementing objects like tuples,
   which are able to determine their size at construction time.
   Embedding the array of fields into the same allocation decreases
   the number of allocations, improving the memory management
   efficiency.

void PyObject_Del(void *op)

   Releases memory allocated to an object using "PyObject_New" or
   "PyObject_NewVar".  This is normally called from the "tp_dealloc"
   handler specified in the object's type.  The fields of the object
   should not be accessed after this call as the memory is no longer a
   valid Python object.

PyObject _Py_NoneStruct

   Object which is visible in Python as "None".  This should only be
   accessed using the "Py_None" macro, which evaluates to a pointer to
   this object.

Δείτε επίσης:

  "PyModule_Create()"
     To allocate and create extension modules.
