New submission from Serhiy Storchaka:
In addition to issue16518. There are other non-fixed messages (may be introduced after 3.3):
Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: sequence item 0: expected bytes, bytearray, or an object with the buffer interface, str found
Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: coercing to str: need bytes, bytearray or buffer-like object, int found
import array; array.array('B').frombytes(array.array('I'))
Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: string/buffer of bytes required.
import socket; print(socket.socket.sendmsg.__doc__)
sendmsg(buffers[, ancdata[, flags[, address]]]) -> count
Send normal and ancillary data to the socket, gathering the non-ancillary data from a series of buffers and concatenating it into a single message. The buffers argument specifies the non-ancillary data as an iterable of buffer-compatible objects (e.g. bytes objects). The ancdata argument specifies the ancillary data (control messages) as an iterable of zero or more tuples (cmsg_level, cmsg_type, cmsg_data), where cmsg_level and cmsg_type are integers specifying the protocol level and protocol-specific type respectively, and cmsg_data is a buffer-compatible object holding the associated data. The flags argument defaults to 0 and has the same meaning as for send(). If address is supplied and not None, it sets a destination address for the message. The return value is the number of bytes of non-ancillary data sent.
And there are several mentions of "buffer-like" or "buffer-compatible" in the documentation.
---------- assignee: docs@python components: Documentation keywords: easy messages: 228799 nosy: chris.jerdonek, docs@python, eric.araujo, ezio.melotti, flox, georg.brandl, pitrou, python-dev, r.david.murray, rhettinger, serhiy.storchaka, skrah, terry.reedy priority: normal severity: normal stage: needs patch status: open title: Other mentions of the buffer protocol