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-rw-r--r--Modules/_multiprocessing/semaphore.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/_multiprocessing/semaphore.c b/Modules/_multiprocessing/semaphore.c
index 9614329..79e8715 100644
--- a/Modules/_multiprocessing/semaphore.c
+++ b/Modules/_multiprocessing/semaphore.c
@@ -135,7 +135,7 @@ semlock_acquire(SemLockObject *self, PyObject *args, PyObject *kwds)
Py_RETURN_TRUE;
case WAIT_OBJECT_0 + 1:
errno = EINTR;
- return PyErr_SetFromErrno(PyExc_IOError);
+ return PyErr_SetFromErrno(PyExc_OSError);
case WAIT_FAILED:
return PyErr_SetFromWindowsErr(0);
default: