[bug#55893] [PATCH] gnu: python-xyz: Add python-pysdl2.

[Jean Pierre De Jesus DIAZ via Guix-patches via <guix-patches@gnu.org>]

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Adds the PySDL2 package published on PyPi.

The package definition sets a fixed path for SDL2 libraries instead of relying on `LD_LIBRARY_PATH`.

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From f983d332d6f541e019aa68eddbc14525c549b948 Mon Sep 17 00:00:00 2001
Message-Id: <f983d332d6f541e019aa68eddbc14525c549b948.1654884220.git.me@jeandudey.tech>
From: Jean-Pierre De Jesus DIAZ <me@jeandudey.tech>
Date: Fri, 10 Jun 2022 19:57:31 +0200
Subject: [PATCH] gnu: python-xyz: Add python-pysdl2.

* gnu/packages/python-xyz.scm (python-pysdl2): Add package.
---
 gnu/packages/python-xyz.scm | 73 +++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 92adf74393..062d8ce96b 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -123,6 +123,7 @@
 ;;; Copyright © 2022 Jai Vetrivelan <jaivetrivelan@gmail.com>
 ;;; Copyright © 2022 Artyom V. Poptsov <poptsov.artyom@gmail.com>
 ;;; Copyright © 2022 Paul A. Patience <paul@apatience.com>
+;;; Copyright © 2022 Jean-Pierre De Jesus DIAZ <me@jeandudey.tech>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -29447,3 +29448,75 @@ (define-public python-musical-scales
 @url{https://en.wikipedia.org/wiki/List_of_musical_scales_and_modes, found on
 Wikipedia}.")
     (license license:expat)))
+
+(define-public python-pysdl2
+  (package
+    (name "python-pysdl2")
+    (version "0.9.11")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "PySDL2" version))
+              (sha256
+               (base32
+                "19id1qswgcj4v4j5kn49shq1xxx3slhjpm0102w87mczsdbi1rck"))))
+    (build-system python-build-system)
+    (arguments
+      `(#:tests? #f ; Requires /dev/dri, OpenGL module, etc.
+        #:phases
+        (modify-phases %standard-phases
+          (add-after 'unpack 'patch-paths
+            (lambda* (#:key inputs #:allow-other-keys)
+              (substitute* "sdl2/dll.py"
+                ; Disable pysdl2-dll. Not needed.
+                (("prepath = os\\.getenv\\('PYSDL2_DLL_PATH'\\)")
+                 "prepath = \"system\"")
+                (("^import sdl2dll$") "")
+                (("postpath = os\\.getenv\\('PYSDL2_DLL_PATH'\\)")
+                 "postpath = \"system\"")
+                (("DLL\\(.*, os\\.getenv\\(\"PYSDL2_DLL_PATH\"\\)\\)")
+                 (string-append "DLL(\"SDL2\", [\"SDL2\", \"SDL2-2.0\","
+                                "\"SDL2-2.0.0\"], "
+                                "\""
+                                (dirname
+                                  (search-input-file inputs
+                                                     "/lib/libSDL2.so"))
+                                "\""
+                                ")")))
+              (substitute* "sdl2/sdlimage.py"
+                (("os\\.getenv\\(\"PYSDL2_DLL_PATH\"\\)")
+                 (string-append "\""
+                                (dirname
+                                  (search-input-file inputs
+                                                     "/lib/libSDL2_image.so"))
+                                "\"")))
+              (substitute* "sdl2/sdlgfx.py"
+                (("os\\.getenv\\(\"PYSDL2_DLL_PATH\"\\)")
+                 (string-append "\""
+                                (dirname
+                                  (search-input-file inputs
+                                                     "/lib/libSDL2_gfx.so"))
+                                "\"")))
+              (substitute* "sdl2/sdlmixer.py"
+                (("os\\.getenv\\(\"PYSDL2_DLL_PATH\"\\)")
+                 (string-append "\""
+                                (dirname
+                                  (search-input-file inputs
+                                                     "/lib/libSDL2_mixer.so"))
+                                "\"")))
+              (substitute* "sdl2/sdlttf.py"
+                (("os\\.getenv\\(\"PYSDL2_DLL_PATH\"\\)")
+                 (string-append "\""
+                                (dirname
+                                  (search-input-file inputs
+                                                     "/lib/libSDL2_ttf.so"))
+                                "\""))))))))
+    (native-inputs
+      (list sdl2 sdl2-image sdl2-gfx sdl2-mixer sdl2-ttf))
+    (home-page "https://github.com/py-sdl/py-sdl2")
+    (synopsis "Python ctypes wrapper around SDL2")
+    (description "PySDL2 is a pure Python wrapper around the @code{SDL2},
+@code{SDL2_mixer}, @code{SDL2_image}, @code{SDL2_ttf}, and @code{SDL2_gfx}
+libraries. Instead of relying on C code, it uses the built-in ctypes module to
+interface with SDL2, and provides simple Python classes and wrappers for
+common SDL2 functionality.")
+    (license license:cc0)))
-- 
2.36.1