Championship style exception handling.

viewer/utils.py

@@ -30,6 +30,9 @@ def make_thumbnail(image):
         thumb_path.parent.mkdir(parents = True, exist_ok = True)
 
         if not thumb_path.exists():
+            try:
                 with Image.open(str(image)) as pilimg:
                     pilimg.thumbnail(THUMB_SIZE)
                     pilimg.save(str(thumb_path))
+            except:
+                pass