solfege Nix expression

default.nix

{ stdenv, fetchurl, pkgconfig, gettext, texinfo, pygobject, pygtk,
  gnome_python, pythonPackages }:

let

    pn = "solfege";
    v  = "3.20.4";

in stdenv.mkDerivation {

  name = "${pn}-${v}";

  src = fetchurl {
    url = "mirror://sourceforge/${pn}/${pn}-stable/${v}/${pn}-${v}.tar.gz";
    sha256 = "0353db804468491d222965f0e8771589d02f3cf7061eaea3063026d70ec35ce0";
  };

  buildInputs = [
    pkgconfig gettext texinfo pygtk pygobject gnome_python
    pythonPackages.python pythonPackages.sqlite3 pythonPackages.wrapPython
  ];

  pythonPath = [ pygobject pygtk gnome_python pythonPackages.sqlite3 ];

  postInstall = "wrapPythonPrograms";

}