[Image-SIG] PNG ICC profile buglet in PIL 1.1.7?
Charles Cazabon
charlesc-pyimagesig at pyropus.ca
Fri Aug 27 18:19:52 CEST 2010
Greetings,
I recently upgraded a machine from PIL 1.1.5 to 1.1.7 and ran into a couple of
buglets. One was the "'Nonetype' object has no attribute 'bands'" one with a
fix found here:
http://hg.effbot.org/pil-2009-raclette/changeset/fb7ce579f5f9
The other I've not found any references to in the list archives (or
elsewhere): while saving an image in PNG format PIL threw an exception
"compress() argument 1 must be string or read-only buffer, not None". I'm
wondering if anyone else has run into this one, and whether this is a
reasonable way to work around it:
--- PngImagePlugin.py.orig 2010-08-27 10:17:11.570280539 -0600
+++ PngImagePlugin.py 2010-08-27 10:17:32.020279474 -0600
@@ -553,7 +553,7 @@
chunk(fp, cid, data)
# ICC profile writing support -- 2008-06-06 Florian Hoech
- if im.info.has_key("icc_profile"):
+ if im.info.get("icc_profile", None):
# ICC profile
# according to PNG spec, the iCCP chunk contains:
# Profile name 1-79 bytes
# (character string)
Thanks,
Charles
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