python.pkgs.gst-python: move expression

pkgs/development/python-modules/gst-python/default.nix

@@ -0,0 +1,43 @@
+{ fetchurl, stdenv, pkgconfig, python, pygobject3
+, gst-plugins-base, ncurses
+}:
+
+stdenv.mkDerivation rec {
+  pname = "gst-python";
+  version = "1.10.4";
+  name = "${pname}-${version}";
+
+  src = fetchurl {
+    urls = [
+      "${meta.homepage}/src/gst-python/${name}.tar.xz"
+      "mirror://gentoo/distfiles/${name}.tar.xz"
+      ];
+    sha256 = "04l2hvvz9b0f3nyds1k3yfk5di8a91fpr6maj19c11mwp1s82l2r";
+  };
+
+  patches = [ ./different-path-with-pygobject.patch ];
+
+  outputs = [ "out" "dev" ];
+
+  nativeBuildInputs = [ pkgconfig python ];
+
+  # XXX: in the Libs.private field of python3.pc
+  buildInputs = [ ncurses ];
+
+  preConfigure = ''
+    export configureFlags="$configureFlags --with-pygi-overrides-dir=$out/lib/${python.sitePackages}/gi/overrides"
+  '';
+
+  propagatedBuildInputs = [ gst-plugins-base pygobject3 ];
+
+  # Needed for python.buildEnv
+  passthru.pythonPath = [];
+
+  meta = {
+    homepage = http://gstreamer.freedesktop.org;
+
+    description = "Python bindings for GStreamer";
+
+    license = stdenv.lib.licenses.lgpl2Plus;
+  };
+}