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| -rw-r--r-- | Doc/library/socket.rst | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst index e583ebd..f7b7d3d 100644 --- a/Doc/library/socket.rst +++ b/Doc/library/socket.rst @@ -384,7 +384,11 @@ The following functions all create :ref:`socket objects <socket-objects>`. :const:`SOCK_DGRAM`, :const:`SOCK_RAW` or perhaps one of the other ``SOCK_`` constants. The protocol number is usually zero and may be omitted or in the case where the address family is :const:`AF_CAN` the protocol should be one - of :const:`CAN_RAW` or :const:`CAN_BCM`. + of :const:`CAN_RAW` or :const:`CAN_BCM`. If *fileno* is specified, the other + arguments are ignored, causing the socket with the specified file descriptor + to return. Unlike :func:`socket.fromfd`, *fileno* will return the same + socket and not a duplicate. This may help close a detached socket using + :meth:`socket.close()`. The newly created socket is :ref:`non-inheritable <fd_inheritance>`. |