Ned Deily <n...@python.org> added the comment:
Test case:
import os
fo = open('/tmp/temp', 'wb')
fi = open('/tmp/temp', 'rb')
os.sendfile(fo.fileno(), fi.fileno(), 0, 0, headers=[b'x' * 2**16] * 2**15)
--
run against current master HEAD (2f9cbaa8b2190b6dfd3157ede9b6973523a3b939, as
of 2018-06-15)
--with-pydebug
current macOS 10.13.5
64-bit Python
$ ./bin/python3.8 ~/Desktop/test_s.py
Traceback (most recent call last):
File "/Users/nad/Desktop/test_s.py", line 4, in <module>
os.sendfile(fo.fileno(), fi.fileno(), 0, 0, headers=[b'x' * 2**16] * 2**15)
OSError: [Errno 38] Socket operation on non-socket
sys:1: ResourceWarning: unclosed file <_io.BufferedWriter name='/tmp/temp'>
sys:1: ResourceWarning: unclosed file <_io.BufferedReader name='/tmp/temp'>
32-bit Python
$ ./bin/python3.8-32 ~/Desktop/test_s.py
Fatal Python error: a function returned NULL without setting an error
SystemError: <built-in function sendfile> returned NULL without setting an error
Current thread 0xa983a1c0 (most recent call first):
File "/Users/nad/Desktop/test_s.py", line 4 in <module>
Abort trap: 6
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue33871>
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