It seems like the bug was fixed in the meanwhile.

https://bugs.python.org/issue32622

====================================================================== ERROR: test_sendfile_close_peer_in_middle_of_receiving (test.test_asyncio.test_events.SelectEventLoopTests)

Traceback (most recent call last): File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_asyncio/test_events.py", line 2338, in test_sendfile_close_peer_in_middle_of_receiving self.loop.sendfile(cli_proto.transport, self.file)) File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_asyncio/test_events.py", line 2130, in run_loop return self.loop.run_until_complete(coro) File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/asyncio/base_events.py", line 566, in run_until_complete return future.result() File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/asyncio/base_events.py", line 1034, in sendfile offset, count) File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/asyncio/selector_events.py", line 550, in _sendfile_native fallback=False) File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/asyncio/base_events.py", line 784, in sock_sendfile offset, count) File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/asyncio/unix_events.py", line 335, in _sock_sendfile_native return await fut File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/asyncio/unix_events.py", line 357, in _sock_sendfile_native_impl sent = os.sendfile(fd, fileno, offset, blocksize) OSError: [Errno 57] Socket is not connected

2018-01-27 20:46 GMT+01:00 <buildbot@python.org>:

The Buildbot has detected a failed build on builder x86-64 Sierra 3.x while building python/cpython. Full details are available at: http://buildbot.python.org/all/#builders/14/builds/616

Buildbot URL: http://buildbot.python.org/all/

Worker for this Build: billenstein-sierra

Build Reason: <unknown> Blamelist: Andrew Svetlov <andrew.svetlov@gmail.com>

BUILD FAILED: failed test (failure)

Sincerely, -The Buildbot

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