From d91082c777fb6494a41f85bcf56bbe4ae5ad9d37 Mon Sep 17 00:00:00 2001
From: Berker Peksag <berker.peksag@gmail.com>
Date: Mon, 5 Jan 2015 09:19:40 +0200
Subject: [PATCH] Issue #18644: Fix a ResourceWarning in formatter.test().

Patch by Vajrasky Kok.
---
 Lib/formatter.py | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/Lib/formatter.py b/Lib/formatter.py
index d8cca52e307..9338261be7c 100644
--- a/Lib/formatter.py
+++ b/Lib/formatter.py
@@ -436,11 +436,15 @@ def test(file = None):
         fp = open(sys.argv[1])
     else:
         fp = sys.stdin
-    for line in fp:
-        if line == '\n':
-            f.end_paragraph(1)
-        else:
-            f.add_flowing_data(line)
+    try:
+        for line in fp:
+            if line == '\n':
+                f.end_paragraph(1)
+            else:
+                f.add_flowing_data(line)
+    finally:
+        if fp is not sys.stdin:
+            fp.close()
     f.end_paragraph(0)