From aa76d77e2b49c134f31f56b6192d600a43ffcecf Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Tue, 1 Jul 2008 20:56:03 +0000
Subject: Add a comment about incref'ing w.

---
 Python/ceval.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Python/ceval.c b/Python/ceval.c
index 60a91b2..037c86c 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -1617,6 +1617,8 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
 							"lost sys.stdout");
 			}
 			if (w != NULL) {
+				/* w.write() may replace sys.stdout, so we
+				 * have to keep our reference to it */
 				Py_INCREF(w);
 				err = PyFile_WriteString("\n", w);
 				if (err == 0)
-- 
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