Expose more MS WIndows constants usable w/ low-level os.open().

Modules/posixmodule.c

@@ -5926,6 +5926,29 @@ all_ins(PyObject *d)
         if (ins(d, "O_LARGEFILE", (long)O_LARGEFILE)) return -1;
 #endif
 
+/* MS Windows */
+#ifdef O_NOINHERIT
+	/* Don't inherit in child processes. */
+        if (ins(d, "O_NOINHERIT", (long)O_NOINHERIT)) return -1;
+#endif
+#ifdef _O_SHORT_LIVED
+	/* Optimize for short life (keep in memory). */
+	/* MS forgot to define this one with a non-underscore form too. */
+        if (ins(d, "O_SHORT_LIVED", (long)_O_SHORT_LIVED)) return -1;
+#endif
+#ifdef O_TEMPORARY
+	/* Automatically delete when last handle is closed. */
+        if (ins(d, "O_TEMPORARY", (long)O_TEMPORARY)) return -1;
+#endif
+#ifdef O_RANDOM
+	/* Optimize for random access. */
+        if (ins(d, "O_RANDOM", (long)O_RANDOM)) return -1;
+#endif
+#ifdef O_SEQUENTIAL
+	/* Optimize for sequential access. */
+        if (ins(d, "O_SEQUENTIAL", (long)O_SEQUENTIAL)) return -1;
+#endif
+
 /* GNU extensions. */
 #ifdef O_DIRECT
         /* Direct disk access. */