From adfda1a5a41f888226957906f4de51839c7ef407 Mon Sep 17 00:00:00 2001
From: hugovk <hugovk@users.noreply.github.com>
Date: Wed, 30 Nov 2016 16:50:44 +0200
Subject: [PATCH] Python 3 compatibility

---
 PIL/IcoImagePlugin.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/PIL/IcoImagePlugin.py b/PIL/IcoImagePlugin.py
index 195bbe42e..3436ae84f 100644
--- a/PIL/IcoImagePlugin.py
+++ b/PIL/IcoImagePlugin.py
@@ -49,6 +49,7 @@ def _save(im, fp, filename):
     sizes = filter(lambda x: False if (x[0] > width or x[1] > height or
                                        x[0] > 256 or x[1] > 256) else True,
                    sizes)
+    sizes = list(sizes)
     fp.write(struct.pack("<H", len(sizes)))  # idCount(2)
     offset = fp.tell() + len(sizes)*16
     for size in sizes: