_PyObject_New
(
PyTypeObject
*type
)
¶
_PyObject_NewVar
(
PyTypeObject
*type
, Py_ssize_t
size
)
¶
Changed in version 2.5:
This function used an
int
type for
size
. This might require changes in your code for properly supporting 64-bit systems.
PyObject_Init
(
PyObject
*op
,
PyTypeObject
*type
)
¶
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.
PyObject_InitVar
(
PyVarObject
*op
,
PyTypeObject
*type
, Py_ssize_t
size
)
¶
This does everything
PyObject_Init()
does, and also initializes the length information for a variable-size object.
Changed in version 2.5:
This function used an
int
type for
size
. This might require changes in your code for properly supporting 64-bit systems.
PyObject_New
(
TYPE,
PyTypeObject
*type
)
¶
Allocate a new Python object using the C structure type
TYPE
and the Python type object
type
. Fields not defined by the Python object header are not initialized; the object’s 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,
PyTypeObject
*type
, Py_ssize_t
size
)
¶
Allocate a new Python object using the C structure type
TYPE
and the Python type object
type
. Fields not defined by the Python object header are not initialized. The allocated memory allows for the
TYPE
structure plus
size
fields of the size given by the
tp_itemsize
字段对于
type
. 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.
Changed in version 2.5:
This function used an
int
type for
size
. This might require changes in your code for properly supporting 64-bit systems.
PyObject_Del
(
PyObject
*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.
Py_InitModule
(
char
*name
,
PyMethodDef
*methods
)
¶
Create a new module object based on a name and table of functions, returning the new module object.
Changed in version 2.3: Older versions of Python did not support NULL as the value for the 方法 自变量。
Py_InitModule3
(
char
*name
,
PyMethodDef
*methods
, char
*doc
)
¶
Create a new module object based on a name and table of functions, returning the new module object. If doc 为非 NULL , it will be used to define the docstring for the module.
Changed in version 2.3: Older versions of Python did not support NULL as the value for the 方法 自变量。
Py_InitModule4
(
char
*name
,
PyMethodDef
*methods
, char
*doc
,
PyObject
*self
, int
apiver
)
¶
Create a new module object based on a name and table of functions, returning the new module object. If
doc
为非
NULL
, it will be used to define the docstring for the module. If
self
为非
NULL
, it will be passed to the functions of the module as their (otherwise
NULL
) first parameter. (This was added as an experimental feature, and there are no known uses in the current version of Python.) For
apiver
, the only value which should be passed is defined by the constant
PYTHON_API_VERSION
.
注意
Most uses of this function should probably be using the
Py_InitModule3()
代替；才使用这若确定需要它。
Changed in version 2.3: Older versions of Python did not support NULL as the value for the 方法 自变量。