#2279 better exception message: show what format we actually got

git-svn-id: https://xpra.org/svn/Xpra/trunk@22515 3bb7dfac-3a0b-4e04-842a-767bc560f471
Xpra-org · Apr 23, 2019 · 89efa92 · 89efa92
1 parent 761d351
commit 89efa92
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/xpra/codecs/pillow/decoder.py b/src/xpra/codecs/pillow/decoder.py
@@ -61,7 +61,7 @@ def get_image_type(data):
 def open_only(data, types=("png", "jpeg", "webp")):
     itype = get_image_type(data)
     if itype not in types:
-        raise Exception("invalid data, not recognized as %s" % csv(types))
+        raise Exception("invalid data: %s, not recognized as %s" % ((itype or "unknown"), csv(types)))
     buf = BytesIO(data)
     return Image.open(buf)