From b52c07322c71daf173cc098d7f14c2cf296842b9 Mon Sep 17 00:00:00 2001
From: Brendan Howell <brendan@howell-ersatz.com>
Date: Wed, 3 May 2017 22:40:51 +0200
Subject: [PATCH] cope with unusual image modes

---
 screenless/bureau/publicrelations/publicrelations.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/screenless/bureau/publicrelations/publicrelations.py b/screenless/bureau/publicrelations/publicrelations.py
index abd5644..8e870c3 100644
--- a/screenless/bureau/publicrelations/publicrelations.py
+++ b/screenless/bureau/publicrelations/publicrelations.py
@@ -113,7 +113,8 @@ class PublicRelations(Bureau):
                     print("fetching", i_url, filename)
                     urllib.request.urlretrieve(i_url, filename)
                     im = PIL.Image.open(filename)
-                    im = PIL.ImageOps.equalize(im)
+                    if im.mode in ("L", "RGB", "P"):
+                        im = PIL.ImageOps.equalize(im)
                     im.thumbnail((576, 576), PIL.Image.ANTIALIAS)
                     prn.image(im, impl="bitImageColumn")