Antoine Pitrou added the comment:
gdb backtrace:
#0 0x00007ffff711ff79 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007ffff7123388 in __GI_abort () at abort.c:89
#2 0x00007ffff7118e36 in __assert_fail_base (fmt=0x7ffff726a718 "%s%s%s:%u:
%s%sAssertion `%s' failed.\n%n",
assertion=assertion@entry=0x670d48 "(result != ((void *)0) &&
!PyErr_Occurred()) || (result == ((void *)0) && PyErr_Occurred())",
file=file@entry=0x670332 "Objects/abstract.c", line=line@entry=2077,
function=function@entry=0x670ff6 <__PRETTY_FUNCTION__.10598>
"PyObject_Call") at assert.c:92
#3 0x00007ffff7118ee2 in __GI___assert_fail (
assertion=0x670d48 "(result != ((void *)0) && !PyErr_Occurred()) || (result
== ((void *)0) && PyErr_Occurred())",
file=0x670332 "Objects/abstract.c", line=2077, function=0x670ff6
<__PRETTY_FUNCTION__.10598> "PyObject_Call") at assert.c:101
#4 0x0000000000461e89 in PyObject_Call (func=0x7ffff27013d8,
arg=0x7ffff6638ef8, kw=0x0) at Objects/abstract.c:2076
#5 0x0000000000462f62 in PyObject_CallFunctionObjArgs
(callable=0x7ffff27013d8) at Objects/abstract.c:2362
#6 0x0000000000463c46 in PyObject_IsSubclass (derived=0x911140
<_PyExc_OSError>, cls=0x911140 <_PyExc_OSError>)
at Objects/abstract.c:2617
#7 0x00000000005cc591 in PyErr_NormalizeException (exc=0x7ffffffdc578,
val=0x7ffffffdc580, tb=0x7ffffffdc588)
at Python/errors.c:254
#8 0x0000000000639bc6 in buffered_close (self=0x7ffff7e6ad78, args=0x0) at
./Modules/_io/bufferedio.c:552
It seems PyErr_NormalizeException doesn't like being called with an exception
set.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue21677>
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