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bug#39316: closed ([PATCH] gnu: Add python-pypng.)

From: GNU bug Tracking System
Subject: bug#39316: closed ([PATCH] gnu: Add python-pypng.)
Date: Tue, 28 Jan 2020 08:30:02 +0000

Your message dated Tue, 28 Jan 2020 09:29:40 +0100
with message-id <address@hidden>
and subject line Re: [bug#39316] [PATCH] gnu: Add python-pypng.
has caused the debbugs.gnu.org bug report #39316,
regarding [PATCH] gnu: Add python-pypng.
to be marked as done.

(If you believe you have received this mail in error, please contact

39316: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=39316
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: [PATCH] gnu: Add python-pypng. Date: Mon, 27 Jan 2020 22:08:48 +0100
* gnu/packages/python-xyz.scm (python-pypng): New variable.
 gnu/packages/python-xyz.scm | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 2af2b2011c..c5e6731642 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -68,6 +68,7 @@
 ;;; Copyright © 2019 Wiktor Żelazny <address@hidden>
 ;;; Copyright © 2019 Tanguy Le Carrour <address@hidden>
 ;;; Copyright © 2019 Mădălin Ionel Patrașcu <address@hidden>
+;;; Copyright © 2020 Jakub Kądziołka <address@hidden>
 ;;; This file is part of GNU Guix.
@@ -17436,3 +17437,32 @@ Project, or not such a gitlab instance when your 
upstream doesn't use any
 dedicated platform.  The tool proposes a unified interface for any format and
 an upload option to send your work back to the platform.")
     (license license:gpl3+)))
+(define-public python-pypng
+  (package
+    (name "python-pypng")
+    (version "0.0.20")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "pypng" version))
+        (sha256
+          (base32
+            "02qpa22ls41vwsrzw9r9qhj1nhq05p03hb5473pay6y980s86chh"))))
+    (build-system python-build-system)
+    (home-page "https://github.com/drj11/pypng";)
+    (synopsis "Pure Python PNG image encoder/decoder")
+    (description
+      ;; Description adapted from Debian
+      "The PyPNG module implements support for PNG images.  It reads and 
writes PNG files
+with all allowable bit depths (1/2/4/8/16/24/32/48/64 bits per pixel) and 
+combinations: greyscale (1/2/4/8/16 bit); RGB, RGBA, LA (greyscale with alpha) 
+8/16 bits per channel; colour mapped images (1/2/4/8 bit).  Adam7 interlacing 
is supported
+for reading and writing.  A number of optional chunks can be specified (when 
writing) and
+understood (when reading): tRNS, bKGD, gAMA.
+PyPNG is not a high level toolkit for image processing (like PIL) and does not 
aim at
+being a replacement or competitor.  Its strength lies in fine-grained 
extensive support of
+PNG features.  It can also read and write Netpbm PAM files, with a focus on 
its use as an
+intermediate format for implementing custom PNG processing.")
+    (license license:expat)))

--- End Message ---
--- Begin Message --- Subject: Re: [bug#39316] [PATCH] gnu: Add python-pypng. Date: Tue, 28 Jan 2020 09:29:40 +0100 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Jakub Kądziołka <address@hidden> writes:

> * gnu/packages/python-xyz.scm (python-pypng): New variable.

Applied as 479f401361a5f7dc54c7fefdca211bd2452dea5a.

I fixed the indentation, which was a bit off, and re-filled the
description, where the lines were too long.

Thank you!


Nicolas Goaziou

--- End Message ---

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