From 9f5f65c736745cfd11efee0418dfb98d1ddec93d Mon Sep 17 00:00:00 2001
From: Brian Curtin <brian.curtin@gmail.com>
Date: Sat, 30 Oct 2010 21:35:28 +0000
Subject: Fix #10258 - clean up resource warning

---
 Lib/test/test_tokenize.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Lib/test/test_tokenize.py b/Lib/test/test_tokenize.py
index 3f45d9c..10e59b9 100644
--- a/Lib/test/test_tokenize.py
+++ b/Lib/test/test_tokenize.py
@@ -590,8 +590,10 @@ def roundtrip(f):
     """
     if isinstance(f, str):
         f = BytesIO(f.encode('utf-8'))
-    token_list = list(tokenize(f.readline))
-    f.close()
+    try:
+        token_list = list(tokenize(f.readline))
+    finally:
+        f.close()
     tokens1 = [tok[:2] for tok in token_list]
     new_bytes = untokenize(tokens1)
     readline = (line for line in new_bytes.splitlines(1)).__next__
-- 
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