[Nix-dev] installing a locally modified package / undefined variable in maintainers

[Roger Qiu]

It appears `simons` is no longer defined?
On 03/08/2016 11:52 PM, "Roland Koebler" <rk-list at simple-is-better.org>
wrote:

> Hi again,
>
> I'm using Nix on Debian 8 (and I really like Nix, thanks!).
> For testing, I'm trying to install several different Python3-versions.
>
> In addition to Python 3.4 and 3.5 (as described in my other mail), I'm
> trying
> to build and install Python 3.2.3 (which is not in nixpkgs) for testing.
> Building works, but installing fails with
>
>     error: undefined variable ‘simons’ at
> /home/user/.../pkgs/python3.2.3/default.nix:103:50
>
> The line in default.nix is:
>
>     maintainers = with stdenv.lib.maintainers; [ simons chaoflow cstrahan
> ];
>
> Details:
>
> - Since Python 3.2.3 is not in nixpkgs, I've copied the package-files from
>   Python 3.2.6 [1] and modified version and sha256 in default.nix:
>
>     version = "${majorVersion}.6";
>     ->
>     version = "${majorVersion}.3";
>
>     sha256 = "1p3vvvh3qw8avq959hdl6bq5d6r7mbhrnigqzgx6mllzh40va4hx";
>     ->
>     sha256 =
> "23c16f621f21e54987079765c060196cbe50235c7867147c6126d433054b1754";
>
> - Then, I've added a custom-packages.nix (according to [2]):
>
>     { system ? builtins.currentSystem }:
>
>     let
>         pkgs = import <nixpkgs> { inherit system; };
>         callPackage = pkgs.lib.callPackageWith (pkgs // pkgs.xlibs);
>     in
>     rec {
>         python323 = callPackage ./pkgs/python3.2.3 {};
>     }
>
> - Now, I could build it with:
>
>     $ nix-build custom-packages.nix -A python323
>
> - But installing fails
>
>     $ nix-env -f custom-packages.nix -iA python323
>     installing ‘mypython3-3.2.3’
>     error: undefined variable ‘simons’ at
> /home/user/.../pkgs/python3.2.3/default.nix:103:50
>
>
> Could you tell me what I've done wrong?
>
>
> [1]
> /nix/store/...-nixpkgs/nixpkgs/pkgs/development/interpreters/python/3.2/
> [2]
> https://sandervanderburg.blogspot.de/2014/07/managing-private-nix-packages-outside.html
>
>
> thanks,
> Roland
>
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