[Nix-dev] newbie question nix private package

[Sébastien Petitdemange]

Hello,

I tried to create a set of private nix packages following this example
(https://gist.github.com/benley/4d7f01805e60b39c2556).

Unfortunately, when I try to build the only package I have, nix build
give me an error:

 nix-build  --show-trace ~/local/bcupkgs -A pytango
error: attempt to call something which is not a function but a set, at
~/local/bcupkgs/default.nix:21:12

I pretty sure that I wrote something stupid but I can find where.

Is there someone who can help me with this?

Kinds regards,

SEB


My private packages look like this:


├── default.nix
├── development
│   └── python-modules
│       └── pytango
│           ├── default.nix
│           └── setup.patch
└── python_packages.nix


with default.nix:

{ system ? builtins.currentSystem}:

let
   pkgs = import <nixpkgs> { inherit system; };
   callPackage = pkgs.lib.callPackageWith (pkgs // self);

   python27Packages = pkgs.recurseIntoAttrs (
      callPackage ./python_packages.nix {
        python = pkgs.python27;
        self = combinedPython27Packages;
      });

   pythonPackages = python27Packages;

   combinedPython27Packages = pkgs.python27Packages // python27Packages;

    self = {

      	tango = callPackage ./development/libraries/tango {};
  	
	pytango = pythonPackages.pytango {};
   };
   in self


with pytango/default.nix

{ stdenv, fetchurl, pkgconfig, python, buildPythonPackage, boost, numpy,
omniorb, zeromq }:

let version = "9.2.0b"; in

buildPythonPackage rec {
  name = "pytango-${version}";

  src = fetchurl {
    url = "https://github.com/tango-cs/pytango/archive/v${version}.tar.gz";
    sha256 = "01wnb9bxszw2pr7jcxcbjdds4y4w7q8cx8ibj73lj6dbjl3ai116";
  };

  BOOST_ROOT = "";

  patches = [
      ./setup.patch
  ];

  buildInputs = [ pkgconfig boost python omniorb zeromq ];

  propagatedBuildInputs = [ numpy ];

  buildFlags = "BOOST_LIB=boost_python";

  #postInstall = ''
  #    patchelf --set-rpath "${zeromq}/lib:${omniorb}/lib:$(patchelf
--print-rpath $out/lib/python2.7/site-packages/PyTango/_PyTango.so)"
$out/lib/python2.7/site-packages/PyTango/_PyTango.so
  #'';

  meta = with stdenv.lib; {
    description = "Python bindings for Tango Control System";
    homepage =
http://www.esrf.eu/computing/cs/tango/tango_doc/kernel_doc/pytango/latest/index.html;
    license = licenses.lgpl3;
    maintainers = [ ];
    platforms = platforms.linux;
  };
}

and with the python_packages.nix:

{ pkgs, stdenv, python, python27Packages, self }:

with pkgs.lib;
with {
     inherit (python27Packages) isPyPy isPy33;
};

let
    buildPythonPackage = python27Packages.buildPythonPackage;
    callPackage = pkgs.lib.callPackageWith (pkgs // self);

in rec {
    modules = python.modules;

    setupPyBaseBuildFlags = ["--build-base=$out"];


    pytango = callPackage ./development/python-modules/pytango { };
}
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