#16518: merge with 3.3.

Doc/c-api/arg.rst

@@ -70,8 +70,7 @@ Unless otherwise stated, buffers are not NUL-terminated.
       as *converter*.
 
 ``s*`` (:class:`str`, :class:`bytes`, :class:`bytearray` or buffer compatible object) [Py_buffer]
-   This format accepts Unicode objects as well as objects supporting the
-   buffer protocol.
+   This format accepts Unicode objects as well as :term:`bytes-like object`\ s.
    It fills a :c:type:`Py_buffer` structure provided by the caller.
    In this case the resulting C string may contain embedded NUL bytes.
    Unicode objects are converted to C strings using ``'utf-8'`` encoding.
@@ -101,14 +100,14 @@ Unless otherwise stated, buffers are not NUL-terminated.
    contain embedded NUL bytes; if it does, a :exc:`TypeError`
    exception is raised.
 
-``y*`` (:class:`bytes`, :class:`bytearray` or buffer compatible object) [Py_buffer]
-   This variant on ``s*`` doesn't accept Unicode objects, only objects
-   supporting the buffer protocol.  **This is the recommended way to accept
+``y*`` (:class:`bytes`, :class:`bytearray` or :term:`bytes-like object`) [Py_buffer]
+   This variant on ``s*`` doesn't accept Unicode objects, only
+   :term:`bytes-like object`\ s.  **This is the recommended way to accept
    binary data.**
 
 ``y#`` (:class:`bytes`) [const char \*, int]
-   This variant on ``s#`` doesn't accept Unicode objects, only bytes-like
-   objects.
+   This variant on ``s#`` doesn't accept Unicode objects, only :term:`bytes-like
+   object`\ s.
 
 ``S`` (:class:`bytes`) [PyBytesObject \*]
    Requires that the Python object is a :class:`bytes` object, without

Doc/c-api/bytearray.rst

@@ -40,7 +40,7 @@ Direct API functions
 .. c:function:: PyObject* PyByteArray_FromObject(PyObject *o)
 
    Return a new bytearray object from any object, *o*, that implements the
-   buffer protocol.
+   :ref:`buffer protocol <bufferobjects>`.
 
    .. XXX expand about the buffer protocol, at least somewhere
 

Doc/library/array.rst

@@ -73,8 +73,8 @@ The module defines the following type:
 .. class:: array(typecode[, initializer])
 
    A new array whose items are restricted by *typecode*, and initialized
-   from the optional *initializer* value, which must be a list, object
-   supporting the buffer interface, or iterable over elements of the
+   from the optional *initializer* value, which must be a list, a
+   :term:`bytes-like object`, or iterable over elements of the
    appropriate type.
 
    If given a list or string, the initializer is passed to the new array's
@@ -91,7 +91,7 @@ Array objects support the ordinary sequence operations of indexing, slicing,
 concatenation, and multiplication.  When using slice assignment, the assigned
 value must be an array object with the same type code; in all other cases,
 :exc:`TypeError` is raised. Array objects also implement the buffer interface,
-and may be used wherever buffer objects are supported.
+and may be used wherever :term:`bytes-like object`\ s are supported.
 
 The following data items and methods are also supported:
 

Doc/library/binascii.rst

@@ -21,8 +21,9 @@ higher-level modules.
 .. note::
 
    ``a2b_*`` functions accept Unicode strings containing only ASCII characters.
-   Other functions only accept bytes and bytes-compatible objects (such as
-   bytearray objects and other objects implementing the buffer API).
+   Other functions only accept :term:`bytes-like object`\ s (such as
+   :class:`bytes`, :class:`bytearray` and other objects that support the buffer
+   protocol).
 
    .. versionchanged:: 3.3
       ASCII-only unicode strings are now accepted by the ``a2b_*`` functions.

Doc/library/hashlib.rst

@@ -32,9 +32,9 @@ digests.  The modern term is secure hash.
 
 There is one constructor method named for each type of :dfn:`hash`.  All return
 a hash object with the same simple interface. For example: use :func:`sha1` to
-create a SHA1 hash object. You can now feed this object with objects conforming
-to the buffer interface (normally :class:`bytes` objects) using the
-:meth:`update` method.  At any point you can ask it for the :dfn:`digest` of the
+create a SHA1 hash object. You can now feed this object with :term:`bytes-like
+object`\ s (normally :class:`bytes`) using the :meth:`update` method.
+At any point you can ask it for the :dfn:`digest` of the
 concatenation of the data fed to it so far using the :meth:`digest` or
 :meth:`hexdigest` methods.
 

Doc/library/hmac.rst

@@ -74,8 +74,7 @@ This module also provides the following helper function:
    timing analysis by avoiding content-based short circuiting behaviour,
    making it appropriate for cryptography.  *a* and *b* must both be of the
    same type: either :class:`str` (ASCII only, as e.g. returned by
-   :meth:`HMAC.hexdigest`), or any type that supports the buffer protocol
-   (e.g. :class:`bytes`).
+   :meth:`HMAC.hexdigest`), or a :term:`bytes-like object`.
 
    .. note::
 

Doc/library/multiprocessing.rst

@@ -800,8 +800,7 @@ Connection objects are usually created using :func:`Pipe` -- see also
 
    .. method:: send_bytes(buffer[, offset[, size]])
 
-      Send byte data from an object supporting the buffer interface as a
-      complete message.
+      Send byte data from a :term:`bytes-like object` as a complete message.
 
       If *offset* is given then data is read from that position in *buffer*.  If
       *size* is given then that many bytes will be read from buffer.  Very large
@@ -832,7 +831,7 @@ Connection objects are usually created using :func:`Pipe` -- see also
       :exc:`EOFError` if there is nothing left to receive and the other end was
       closed.
 
-      *buffer* must be an object satisfying the writable buffer interface.  If
+      *buffer* must be a writable :term:`bytes-like object`.  If
       *offset* is given then the message will be written into the buffer from
       that position.  Offset must be a non-negative integer less than the
       length of *buffer* (in bytes).

Doc/library/stdtypes.rst

@@ -519,9 +519,8 @@ class`. In addition, it provides one more method:
         >>> int.from_bytes([255, 0, 0], byteorder='big')
         16711680
 
-    The argument *bytes* must either support the buffer protocol or be an
-    iterable producing bytes. :class:`bytes` and :class:`bytearray` are
-    examples of built-in objects that support the buffer protocol.
+    The argument *bytes* must either be a :term:`bytes-like object` or an
+    iterable producing bytes.
 
     The *byteorder* argument determines the byte order used to represent the
     integer.  If *byteorder* is ``"big"``, the most significant byte is at the
@@ -1417,10 +1416,9 @@ multiple fragments.
       single: bytes; str (built-in class)
 
    If at least one of *encoding* or *errors* is given, *object* should be a
-   :class:`bytes` or :class:`bytearray` object, or more generally any object
-   that supports the :ref:`buffer protocol <bufferobjects>`.  In this case, if
-   *object* is a :class:`bytes` (or :class:`bytearray`) object, then
-   ``str(bytes, encoding, errors)`` is equivalent to
+   :term:`bytes-like object` (e.g. :class:`bytes` or :class:`bytearray`).  In
+   this case, if *object* is a :class:`bytes` (or :class:`bytearray`) object,
+   then ``str(bytes, encoding, errors)`` is equivalent to
    :meth:`bytes.decode(encoding, errors) <bytes.decode>`.  Otherwise, the bytes
    object underlying the buffer object is obtained before calling
    :meth:`bytes.decode`.  See :ref:`binaryseq` and