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[3.13] gh-110383: Document socket.makefile() accepts combined modes (GH-119150) #119324

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May 21, 2024
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[3.13] gh-110383: Document socket.makefile() accepts combined modes (GH-119150) #119324

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3 changes: 2 additions & 1 deletion Doc/library/socket.rst
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Expand Up @@ -1589,7 +1589,8 @@ to sockets.
Return a :term:`file object` associated with the socket. The exact returned
type depends on the arguments given to :meth:`makefile`. These arguments are
interpreted the same way as by the built-in :func:`open` function, except
the only supported *mode* values are ``'r'`` (default), ``'w'`` and ``'b'``.
the only supported *mode* values are ``'r'`` (default), ``'w'``, ``'b'``, or
a combination of those.

The socket must be in blocking mode; it can have a timeout, but the file
object's internal buffer may end up in an inconsistent state if a timeout
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3 changes: 2 additions & 1 deletion Lib/socket.py
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Expand Up @@ -306,7 +306,8 @@ def makefile(self, mode="r", buffering=None, *,
"""makefile(...) -> an I/O stream connected to the socket

The arguments are as for io.open() after the filename, except the only
supported mode values are 'r' (default), 'w' and 'b'.
supported mode values are 'r' (default), 'w', 'b', or a combination of
those.
"""
# XXX refactor to share code?
if not set(mode) <= {"r", "w", "b"}:
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