From 4e7d2d481a5ab86977bd9dbafbceabec7b48883b Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Mon, 5 Nov 2012 01:20:58 +0100
Subject: Issue #15478: Oops, fix regression in os.open() on Windows

os.open() uses _wopen() which sets errno, not the Windows error code.
---
 Modules/posixmodule.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 8cedb9e..3f863a8 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -7057,7 +7057,7 @@ posix_open(PyObject *self, PyObject *args, PyObject *kwargs)
     Py_END_ALLOW_THREADS
 
     if (fd == -1) {
-        return_value = path_error(&path);
+        PyErr_SetFromErrnoWithFilenameObject(PyExc_OSError, path.object);
         goto exit;
     }
 
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