diff options
Diffstat (limited to 'Doc/c-api/object.rst')
| -rw-r--r-- | Doc/c-api/object.rst | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst index 0aba360..ad84301 100644 --- a/Doc/c-api/object.rst +++ b/Doc/c-api/object.rst @@ -149,6 +149,9 @@ Object Protocol representation on success, *NULL* on failure. This is the equivalent of the Python expression ``repr(o)``. Called by the :func:`repr` built-in function. + .. versionchanged:: 3.4 + This function now includes a debug assertion to help ensure that it + does not silently discard an active exception. .. c:function:: PyObject* PyObject_ASCII(PyObject *o) @@ -170,6 +173,10 @@ Object Protocol Python expression ``str(o)``. Called by the :func:`str` built-in function and, therefore, by the :func:`print` function. + .. versionchanged:: 3.4 + This function now includes a debug assertion to help ensure that it + does not silently discard an active exception. + .. c:function:: PyObject* PyObject_Bytes(PyObject *o) .. index:: builtin: bytes @@ -240,7 +247,7 @@ attribute is considered sufficient for this determination. of the Python expression ``callable_object(*args)``. -.. c:function:: PyObject* PyObject_CallFunction(PyObject *callable, char *format, ...) +.. c:function:: PyObject* PyObject_CallFunction(PyObject *callable, const char *format, ...) Call a callable Python object *callable*, with a variable number of C arguments. The C arguments are described using a :c:func:`Py_BuildValue` style format @@ -250,8 +257,11 @@ attribute is considered sufficient for this determination. pass :c:type:`PyObject \*` args, :c:func:`PyObject_CallFunctionObjArgs` is a faster alternative. + .. versionchanged:: 3.4 + The type of *format* was changed from ``char *``. + -.. c:function:: PyObject* PyObject_CallMethod(PyObject *o, char *method, char *format, ...) +.. c:function:: PyObject* PyObject_CallMethod(PyObject *o, const char *method, const char *format, ...) Call the method named *method* of object *o* with a variable number of C arguments. The C arguments are described by a :c:func:`Py_BuildValue` format @@ -261,6 +271,9 @@ attribute is considered sufficient for this determination. Note that if you only pass :c:type:`PyObject \*` args, :c:func:`PyObject_CallMethodObjArgs` is a faster alternative. + .. versionchanged:: 3.4 + The types of *method* and *format* were changed from ``char *``. + .. c:function:: PyObject* PyObject_CallFunctionObjArgs(PyObject *callable, ..., NULL) @@ -342,6 +355,15 @@ attribute is considered sufficient for this determination. returned. This is the equivalent to the Python expression ``len(o)``. +.. c:function:: Py_ssize_t PyObject_LengthHint(PyObject *o, Py_ssize_t default) + + Return an estimated length for the object *o*. First trying to return its + actual length, then an estimate using ``__length_hint__``, and finally + returning the default value. On error ``-1`` is returned. This is the + equivalent to the Python expression ``operator.length_hint(o, default)``. + + .. versionadded:: 3.4 + .. c:function:: PyObject* PyObject_GetItem(PyObject *o, PyObject *key) Return element of *o* corresponding to the object *key* or *NULL* on failure. |