From 8f30ec94070ae2b2f94448c8ee1dbf79f8a54cc0 Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Thu, 15 Aug 2019 19:46:12 -0700
Subject: Use Pillow's Image context manager to close image file

---
 sphinx/util/images.py | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sphinx/util/images.py b/sphinx/util/images.py
index 8471e56df..dfc94d4b4 100644
--- a/sphinx/util/images.py
+++ b/sphinx/util/images.py
@@ -42,12 +42,8 @@ def get_image_size(filename: str) -> Tuple[int, int]:
             size = None
 
         if size is None and Image:  # fallback to Pillow
-            im = Image.open(filename)
-            size = im.size
-            try:
-                im.fp.close()
-            except Exception:
-                pass
+            with Image.open(filename) as im:
+                size = im.size
 
         return size
     except Exception:
-- 
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