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-rw-r--r--Doc/c-api/bool.rst3
-rw-r--r--Doc/c-api/bytearray.rst4
-rw-r--r--Doc/c-api/bytes.rst4
-rw-r--r--Doc/c-api/capsule.rst3
-rw-r--r--Doc/c-api/cell.rst3
-rw-r--r--Doc/c-api/code.rst2
-rw-r--r--Doc/c-api/complex.rst4
-rw-r--r--Doc/c-api/coro.rst1
-rw-r--r--Doc/c-api/datetime.rst25
-rw-r--r--Doc/c-api/dict.rst4
-rw-r--r--Doc/c-api/float.rst4
-rw-r--r--Doc/c-api/function.rst2
-rw-r--r--Doc/c-api/gen.rst6
-rw-r--r--Doc/c-api/iter.rst3
-rw-r--r--Doc/c-api/iterator.rst6
-rw-r--r--Doc/c-api/list.rst4
-rw-r--r--Doc/c-api/long.rst4
-rw-r--r--Doc/c-api/memoryview.rst3
-rw-r--r--Doc/c-api/method.rst3
-rw-r--r--Doc/c-api/module.rst3
-rw-r--r--Doc/c-api/set.rst9
-rw-r--r--Doc/c-api/slice.rst3
-rw-r--r--Doc/c-api/tuple.rst6
-rw-r--r--Doc/c-api/type.rst6
-rw-r--r--Doc/c-api/unicode.rst4
-rw-r--r--Doc/c-api/weakref.rst7
26 files changed, 74 insertions, 52 deletions
diff --git a/Doc/c-api/bool.rst b/Doc/c-api/bool.rst
index ce8de6e..c197d44 100644
--- a/Doc/c-api/bool.rst
+++ b/Doc/c-api/bool.rst
@@ -13,7 +13,8 @@ are available, however.
.. c:function:: int PyBool_Check(PyObject *o)
- Return true if *o* is of type :c:data:`PyBool_Type`.
+ Return true if *o* is of type :c:data:`PyBool_Type`. This function always
+ succeeds.
.. c:var:: PyObject* Py_False
diff --git a/Doc/c-api/bytearray.rst b/Doc/c-api/bytearray.rst
index b2f409c..30bcfc7 100644
--- a/Doc/c-api/bytearray.rst
+++ b/Doc/c-api/bytearray.rst
@@ -25,13 +25,13 @@ Type check macros
.. c:function:: int PyByteArray_Check(PyObject *o)
Return true if the object *o* is a bytearray object or an instance of a
- subtype of the bytearray type.
+ subtype of the bytearray type. This function always succeeds.
.. c:function:: int PyByteArray_CheckExact(PyObject *o)
Return true if the object *o* is a bytearray object, but not an instance of a
- subtype of the bytearray type.
+ subtype of the bytearray type. This function always succeeds.
Direct API functions
diff --git a/Doc/c-api/bytes.rst b/Doc/c-api/bytes.rst
index 0e33ed2..de65701 100644
--- a/Doc/c-api/bytes.rst
+++ b/Doc/c-api/bytes.rst
@@ -25,13 +25,13 @@ called with a non-bytes parameter.
.. c:function:: int PyBytes_Check(PyObject *o)
Return true if the object *o* is a bytes object or an instance of a subtype
- of the bytes type.
+ of the bytes type. This function always succeeds.
.. c:function:: int PyBytes_CheckExact(PyObject *o)
Return true if the object *o* is a bytes object, but not an instance of a
- subtype of the bytes type.
+ subtype of the bytes type. This function always succeeds.
.. c:function:: PyObject* PyBytes_FromString(const char *v)
diff --git a/Doc/c-api/capsule.rst b/Doc/c-api/capsule.rst
index 5eb313c..908e926 100644
--- a/Doc/c-api/capsule.rst
+++ b/Doc/c-api/capsule.rst
@@ -34,7 +34,8 @@ Refer to :ref:`using-capsules` for more information on using these objects.
.. c:function:: int PyCapsule_CheckExact(PyObject *p)
- Return true if its argument is a :c:type:`PyCapsule`.
+ Return true if its argument is a :c:type:`PyCapsule`. This function always
+ succeeds.
.. c:function:: PyObject* PyCapsule_New(void *pointer, const char *name, PyCapsule_Destructor destructor)
diff --git a/Doc/c-api/cell.rst b/Doc/c-api/cell.rst
index 8408f7e..ac4ef5a 100644
--- a/Doc/c-api/cell.rst
+++ b/Doc/c-api/cell.rst
@@ -27,7 +27,8 @@ Cell objects are not likely to be useful elsewhere.
.. c:function:: int PyCell_Check(ob)
- Return true if *ob* is a cell object; *ob* must not be ``NULL``.
+ Return true if *ob* is a cell object; *ob* must not be ``NULL``. This
+ function always succeeds.
.. c:function:: PyObject* PyCell_New(PyObject *ob)
diff --git a/Doc/c-api/code.rst b/Doc/c-api/code.rst
index 6f8c41c..b3a17f1 100644
--- a/Doc/c-api/code.rst
+++ b/Doc/c-api/code.rst
@@ -27,7 +27,7 @@ bound into a function.
.. c:function:: int PyCode_Check(PyObject *co)
- Return true if *co* is a :class:`code` object.
+ Return true if *co* is a :class:`code` object. This function always succeeds.
.. c:function:: int PyCode_GetNumFree(PyCodeObject *co)
diff --git a/Doc/c-api/complex.rst b/Doc/c-api/complex.rst
index 06dbb25..e2ea766 100644
--- a/Doc/c-api/complex.rst
+++ b/Doc/c-api/complex.rst
@@ -94,13 +94,13 @@ Complex Numbers as Python Objects
.. c:function:: int PyComplex_Check(PyObject *p)
Return true if its argument is a :c:type:`PyComplexObject` or a subtype of
- :c:type:`PyComplexObject`.
+ :c:type:`PyComplexObject`. This function always succeeds.
.. c:function:: int PyComplex_CheckExact(PyObject *p)
Return true if its argument is a :c:type:`PyComplexObject`, but not a subtype of
- :c:type:`PyComplexObject`.
+ :c:type:`PyComplexObject`. This function always succeeds.
.. c:function:: PyObject* PyComplex_FromCComplex(Py_complex v)
diff --git a/Doc/c-api/coro.rst b/Doc/c-api/coro.rst
index 2260944..caa855a 100644
--- a/Doc/c-api/coro.rst
+++ b/Doc/c-api/coro.rst
@@ -24,6 +24,7 @@ return.
.. c:function:: int PyCoro_CheckExact(PyObject *ob)
Return true if *ob*'s type is :c:type:`PyCoro_Type`; *ob* must not be ``NULL``.
+ This function always succeeds.
.. c:function:: PyObject* PyCoro_New(PyFrameObject *frame, PyObject *name, PyObject *qualname)
diff --git a/Doc/c-api/datetime.rst b/Doc/c-api/datetime.rst
index 415ce4c..4c4e4bc 100644
--- a/Doc/c-api/datetime.rst
+++ b/Doc/c-api/datetime.rst
@@ -28,61 +28,66 @@ Type-check macros:
.. c:function:: int PyDate_Check(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_DateType` or a subtype of
- :c:data:`PyDateTime_DateType`. *ob* must not be ``NULL``.
+ :c:data:`PyDateTime_DateType`. *ob* must not be ``NULL``. This function always
+ succeeds.
.. c:function:: int PyDate_CheckExact(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_DateType`. *ob* must not be
- ``NULL``.
+ ``NULL``. This function always succeeds.
.. c:function:: int PyDateTime_Check(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_DateTimeType` or a subtype of
- :c:data:`PyDateTime_DateTimeType`. *ob* must not be ``NULL``.
+ :c:data:`PyDateTime_DateTimeType`. *ob* must not be ``NULL``. This function always
+ succeeds.
.. c:function:: int PyDateTime_CheckExact(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_DateTimeType`. *ob* must not
- be ``NULL``.
+ be ``NULL``. This function always succeeds.
.. c:function:: int PyTime_Check(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_TimeType` or a subtype of
- :c:data:`PyDateTime_TimeType`. *ob* must not be ``NULL``.
+ :c:data:`PyDateTime_TimeType`. *ob* must not be ``NULL``. This function always
+ succeeds.
.. c:function:: int PyTime_CheckExact(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_TimeType`. *ob* must not be
- ``NULL``.
+ ``NULL``. This function always succeeds.
.. c:function:: int PyDelta_Check(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_DeltaType` or a subtype of
- :c:data:`PyDateTime_DeltaType`. *ob* must not be ``NULL``.
+ :c:data:`PyDateTime_DeltaType`. *ob* must not be ``NULL``. This function always
+ succeeds.
.. c:function:: int PyDelta_CheckExact(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_DeltaType`. *ob* must not be
- ``NULL``.
+ ``NULL``. This function always succeeds.
.. c:function:: int PyTZInfo_Check(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_TZInfoType` or a subtype of
- :c:data:`PyDateTime_TZInfoType`. *ob* must not be ``NULL``.
+ :c:data:`PyDateTime_TZInfoType`. *ob* must not be ``NULL``. This function always
+ succeeds.
.. c:function:: int PyTZInfo_CheckExact(PyObject *ob)
Return true if *ob* is of type :c:data:`PyDateTime_TZInfoType`. *ob* must not be
- ``NULL``.
+ ``NULL``. This function always succeeds.
Macros to create objects:
diff --git a/Doc/c-api/dict.rst b/Doc/c-api/dict.rst
index 8e0d684..d257c9b 100644
--- a/Doc/c-api/dict.rst
+++ b/Doc/c-api/dict.rst
@@ -22,13 +22,13 @@ Dictionary Objects
.. c:function:: int PyDict_Check(PyObject *p)
Return true if *p* is a dict object or an instance of a subtype of the dict
- type.
+ type. This function always succeeds.
.. c:function:: int PyDict_CheckExact(PyObject *p)
Return true if *p* is a dict object, but not an instance of a subtype of
- the dict type.
+ the dict type. This function always succeeds.
.. c:function:: PyObject* PyDict_New()
diff --git a/Doc/c-api/float.rst b/Doc/c-api/float.rst
index b29937d..c107243 100644
--- a/Doc/c-api/float.rst
+++ b/Doc/c-api/float.rst
@@ -22,13 +22,13 @@ Floating Point Objects
.. c:function:: int PyFloat_Check(PyObject *p)
Return true if its argument is a :c:type:`PyFloatObject` or a subtype of
- :c:type:`PyFloatObject`.
+ :c:type:`PyFloatObject`. This function always succeeds.
.. c:function:: int PyFloat_CheckExact(PyObject *p)
Return true if its argument is a :c:type:`PyFloatObject`, but not a subtype of
- :c:type:`PyFloatObject`.
+ :c:type:`PyFloatObject`. This function always succeeds.
.. c:function:: PyObject* PyFloat_FromString(PyObject *str)
diff --git a/Doc/c-api/function.rst b/Doc/c-api/function.rst
index bb416f4..2096882 100644
--- a/Doc/c-api/function.rst
+++ b/Doc/c-api/function.rst
@@ -26,7 +26,7 @@ There are a few functions specific to Python functions.
.. c:function:: int PyFunction_Check(PyObject *o)
Return true if *o* is a function object (has type :c:data:`PyFunction_Type`).
- The parameter must not be ``NULL``.
+ The parameter must not be ``NULL``. This function always succeeds.
.. c:function:: PyObject* PyFunction_New(PyObject *code, PyObject *globals)
diff --git a/Doc/c-api/gen.rst b/Doc/c-api/gen.rst
index 7441092..0eb5922 100644
--- a/Doc/c-api/gen.rst
+++ b/Doc/c-api/gen.rst
@@ -22,12 +22,14 @@ than explicitly calling :c:func:`PyGen_New` or :c:func:`PyGen_NewWithQualName`.
.. c:function:: int PyGen_Check(PyObject *ob)
- Return true if *ob* is a generator object; *ob* must not be ``NULL``.
+ Return true if *ob* is a generator object; *ob* must not be ``NULL``. This
+ function always succeeds.
.. c:function:: int PyGen_CheckExact(PyObject *ob)
- Return true if *ob*'s type is :c:type:`PyGen_Type`; *ob* must not be ``NULL``.
+ Return true if *ob*'s type is :c:type:`PyGen_Type`; *ob* must not be
+ ``NULL``. This function always succeeds.
.. c:function:: PyObject* PyGen_New(PyFrameObject *frame)
diff --git a/Doc/c-api/iter.rst b/Doc/c-api/iter.rst
index 68df6f6..74fb557 100644
--- a/Doc/c-api/iter.rst
+++ b/Doc/c-api/iter.rst
@@ -9,7 +9,8 @@ There are two functions specifically for working with iterators.
.. c:function:: int PyIter_Check(PyObject *o)
- Return true if the object *o* supports the iterator protocol.
+ Return true if the object *o* supports the iterator protocol. This
+ function always succeeds.
.. c:function:: PyObject* PyIter_Next(PyObject *o)
diff --git a/Doc/c-api/iterator.rst b/Doc/c-api/iterator.rst
index 4d91e4a..3fcf099 100644
--- a/Doc/c-api/iterator.rst
+++ b/Doc/c-api/iterator.rst
@@ -21,7 +21,8 @@ sentinel value is returned.
.. c:function:: int PySeqIter_Check(op)
- Return true if the type of *op* is :c:data:`PySeqIter_Type`.
+ Return true if the type of *op* is :c:data:`PySeqIter_Type`. This function
+ always succeeds.
.. c:function:: PyObject* PySeqIter_New(PyObject *seq)
@@ -39,7 +40,8 @@ sentinel value is returned.
.. c:function:: int PyCallIter_Check(op)
- Return true if the type of *op* is :c:data:`PyCallIter_Type`.
+ Return true if the type of *op* is :c:data:`PyCallIter_Type`. This
+ function always succeeds.
.. c:function:: PyObject* PyCallIter_New(PyObject *callable, PyObject *sentinel)
diff --git a/Doc/c-api/list.rst b/Doc/c-api/list.rst
index 0bc0785..f338e2a 100644
--- a/Doc/c-api/list.rst
+++ b/Doc/c-api/list.rst
@@ -22,13 +22,13 @@ List Objects
.. c:function:: int PyList_Check(PyObject *p)
Return true if *p* is a list object or an instance of a subtype of the list
- type.
+ type. This function always succeeds.
.. c:function:: int PyList_CheckExact(PyObject *p)
Return true if *p* is a list object, but not an instance of a subtype of
- the list type.
+ the list type. This function always succeeds.
.. c:function:: PyObject* PyList_New(Py_ssize_t len)
diff --git a/Doc/c-api/long.rst b/Doc/c-api/long.rst
index 4d859fb..4201490 100644
--- a/Doc/c-api/long.rst
+++ b/Doc/c-api/long.rst
@@ -27,13 +27,13 @@ distinguished from a number. Use :c:func:`PyErr_Occurred` to disambiguate.
.. c:function:: int PyLong_Check(PyObject *p)
Return true if its argument is a :c:type:`PyLongObject` or a subtype of
- :c:type:`PyLongObject`.
+ :c:type:`PyLongObject`. This function always succeeds.
.. c:function:: int PyLong_CheckExact(PyObject *p)
Return true if its argument is a :c:type:`PyLongObject`, but not a subtype of
- :c:type:`PyLongObject`.
+ :c:type:`PyLongObject`. This function always succeeds.
.. c:function:: PyObject* PyLong_FromLong(long v)
diff --git a/Doc/c-api/memoryview.rst b/Doc/c-api/memoryview.rst
index de429e5..24f8c93 100644
--- a/Doc/c-api/memoryview.rst
+++ b/Doc/c-api/memoryview.rst
@@ -45,7 +45,8 @@ any other object.
.. c:function:: int PyMemoryView_Check(PyObject *obj)
Return true if the object *obj* is a memoryview object. It is not
- currently allowed to create subclasses of :class:`memoryview`.
+ currently allowed to create subclasses of :class:`memoryview`. This
+ function always succeeds.
.. c:function:: Py_buffer *PyMemoryView_GET_BUFFER(PyObject *mview)
diff --git a/Doc/c-api/method.rst b/Doc/c-api/method.rst
index 0a5341c..2385225 100644
--- a/Doc/c-api/method.rst
+++ b/Doc/c-api/method.rst
@@ -22,6 +22,7 @@ to bind a :c:data:`PyCFunction` to a class object. It replaces the former call
Return true if *o* is an instance method object (has type
:c:data:`PyInstanceMethod_Type`). The parameter must not be ``NULL``.
+ This function always succeeds.
.. c:function:: PyObject* PyInstanceMethod_New(PyObject *func)
@@ -64,7 +65,7 @@ no longer available.
.. c:function:: int PyMethod_Check(PyObject *o)
Return true if *o* is a method object (has type :c:data:`PyMethod_Type`). The
- parameter must not be ``NULL``.
+ parameter must not be ``NULL``. This function always succeeds.
.. c:function:: PyObject* PyMethod_New(PyObject *func, PyObject *self)
diff --git a/Doc/c-api/module.rst b/Doc/c-api/module.rst
index 41a705d..a2541af 100644
--- a/Doc/c-api/module.rst
+++ b/Doc/c-api/module.rst
@@ -19,12 +19,13 @@ Module Objects
.. c:function:: int PyModule_Check(PyObject *p)
Return true if *p* is a module object, or a subtype of a module object.
+ This function always succeeds.
.. c:function:: int PyModule_CheckExact(PyObject *p)
Return true if *p* is a module object, but not a subtype of
- :c:data:`PyModule_Type`.
+ :c:data:`PyModule_Type`. This function always succeeds.
.. c:function:: PyObject* PyModule_NewObject(PyObject *name)
diff --git a/Doc/c-api/set.rst b/Doc/c-api/set.rst
index 879f394..84f34e7 100644
--- a/Doc/c-api/set.rst
+++ b/Doc/c-api/set.rst
@@ -53,28 +53,29 @@ the constructor functions work with any iterable Python object.
.. c:function:: int PySet_Check(PyObject *p)
Return true if *p* is a :class:`set` object or an instance of a subtype.
+ This function always succeeds.
.. c:function:: int PyFrozenSet_Check(PyObject *p)
Return true if *p* is a :class:`frozenset` object or an instance of a
- subtype.
+ subtype. This function always succeeds.
.. c:function:: int PyAnySet_Check(PyObject *p)
Return true if *p* is a :class:`set` object, a :class:`frozenset` object, or an
- instance of a subtype.
+ instance of a subtype. This function always succeeds.
.. c:function:: int PyAnySet_CheckExact(PyObject *p)
Return true if *p* is a :class:`set` object or a :class:`frozenset` object but
- not an instance of a subtype.
+ not an instance of a subtype. This function always succeeds.
.. c:function:: int PyFrozenSet_CheckExact(PyObject *p)
Return true if *p* is a :class:`frozenset` object but not an instance of a
- subtype.
+ subtype. This function always succeeds.
.. c:function:: PyObject* PySet_New(PyObject *iterable)
diff --git a/Doc/c-api/slice.rst b/Doc/c-api/slice.rst
index 48a58c6..8271d9a 100644
--- a/Doc/c-api/slice.rst
+++ b/Doc/c-api/slice.rst
@@ -14,7 +14,8 @@ Slice Objects
.. c:function:: int PySlice_Check(PyObject *ob)
- Return true if *ob* is a slice object; *ob* must not be ``NULL``.
+ Return true if *ob* is a slice object; *ob* must not be ``NULL``. This
+ function always succeeds.
.. c:function:: PyObject* PySlice_New(PyObject *start, PyObject *stop, PyObject *step)
diff --git a/Doc/c-api/tuple.rst b/Doc/c-api/tuple.rst
index c0c14f4..6919e61 100644
--- a/Doc/c-api/tuple.rst
+++ b/Doc/c-api/tuple.rst
@@ -21,14 +21,14 @@ Tuple Objects
.. c:function:: int PyTuple_Check(PyObject *p)
- Return true if *p* is a tuple object or an instance of a subtype of the tuple
- type.
+ Return true if *p* is a tuple object or an instance of a subtype of the
+ tuple type. This function always succeeds.
.. c:function:: int PyTuple_CheckExact(PyObject *p)
Return true if *p* is a tuple object, but not an instance of a subtype of the
- tuple type.
+ tuple type. This function always succeeds.
.. c:function:: PyObject* PyTuple_New(Py_ssize_t len)
diff --git a/Doc/c-api/type.rst b/Doc/c-api/type.rst
index a869859..b9bfa55 100644
--- a/Doc/c-api/type.rst
+++ b/Doc/c-api/type.rst
@@ -23,12 +23,14 @@ Type Objects
Return non-zero if the object *o* is a type object, including instances of
types derived from the standard type object. Return 0 in all other cases.
+ This function always succeeds.
.. c:function:: int PyType_CheckExact(PyObject *o)
- Return non-zero if the object *o* is a type object, but not a subtype of the
- standard type object. Return 0 in all other cases.
+ Return non-zero if the object *o* is a type object, but not a subtype of
+ the standard type object. Return 0 in all other cases. This function
+ always succeeds.
.. c:function:: unsigned int PyType_ClearCache()
diff --git a/Doc/c-api/unicode.rst b/Doc/c-api/unicode.rst
index b7f99d3..1851c64 100644
--- a/Doc/c-api/unicode.rst
+++ b/Doc/c-api/unicode.rst
@@ -91,13 +91,13 @@ access internal read-only data of Unicode objects:
.. c:function:: int PyUnicode_Check(PyObject *o)
Return true if the object *o* is a Unicode object or an instance of a Unicode
- subtype.
+ subtype. This function always succeeds.
.. c:function:: int PyUnicode_CheckExact(PyObject *o)
Return true if the object *o* is a Unicode object, but not an instance of a
- subtype.
+ subtype. This function always succeeds.
.. c:function:: int PyUnicode_READY(PyObject *o)
diff --git a/Doc/c-api/weakref.rst b/Doc/c-api/weakref.rst
index 9205ca6..98ebe71 100644
--- a/Doc/c-api/weakref.rst
+++ b/Doc/c-api/weakref.rst
@@ -13,17 +13,18 @@ as much as it can.
.. c:function:: int PyWeakref_Check(ob)
- Return true if *ob* is either a reference or proxy object.
+ Return true if *ob* is either a reference or proxy object. This function
+ always succeeds.
.. c:function:: int PyWeakref_CheckRef(ob)
- Return true if *ob* is a reference object.
+ Return true if *ob* is a reference object. This function always succeeds.
.. c:function:: int PyWeakref_CheckProxy(ob)
- Return true if *ob* is a proxy object.
+ Return true if *ob* is a proxy object. This function always succeeds.
.. c:function:: PyObject* PyWeakref_NewRef(PyObject *ob, PyObject *callback)