1 files changed, 24 insertions, 2 deletions
diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst
index 0aba360..509ca3f 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 try to return its
+   actual length, then an estimate using :meth:`~object.__length_hint__`, and
+   finally return the default value. On error return ``-1``. 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.