That snippet is not from Development section, see http://nixos.org/nixpkgs/manual/#python-development
On Tue, Mar 3, 2015 at 10:45 AM, Catonano <caton...@gmail.com> wrote: > Domen, > > 2015-03-02 11:14 GMT+01:00 Domen Kožar <do...@dev.si>: > >> Please don't use myEnvFun, it's not documented and superseeded by >> nix-shell. >> >> See Development/Python section in nixpkgs manual: >> http://nixos.org/nixpkgs/manual/#python >> > > I appreciate your concern. > > I tried wit this (copied from the link you suggested and adjusted for xlrd) > > > with import <nixpkgs> {}; > > python.buildEnv.override { > extraLibs = [ pkgs.pythonPackages.xlrd ]; > ignoreCollisions = true; > } > > > and I get > > $ nix-shell > error: undefined variable ‘python’ at > "/home/catonano/Taranto/openpuglia/openArpa/default.nix":4:7 > > > > On Mon, Mar 2, 2015 at 9:58 AM, Kirill Elagin <kirela...@gmail.com> wrote: >> >>> I think I figured it out. Here are the steps to get stable nixpkgs: >>> >>> ~~~~ >>> $ nix-channel --remove nixos >>> $ nix-channel --remove nixpkgs >>> $ nix-channel --add https://nixos.org/channels/nixos-14.12 nixos >>> $ nix-channel --update >>> $ ln -s ~/.nix-defexpr/channels/nixos/nixpkgs ~/.nix-defexpr/nixpkgs >>> $ export NIX_PATH=nixpkgs=$HOME/.nix-defexpr/nixpkgs >>> ~~~~ >>> >>> And the last step is to put the last line (`export >>> NIX_PATH=nixpkgs=$HOME/.nix-defexpr/nixpkgs`) into `~/.profile` or >>> something like that. >>> >>> After this your original `shell.nix` should work without modifications I >>> suggested in my previous message. >>> >>> On Mon, Mar 2, 2015 at 11:29 AM Kirill Elagin <kirela...@gmail.com> >>> wrote: >>> >>>> That’s because you now have the `nixos` expression instead of `nixpkgs` >>>> but it is still misleadingly called `nixpkgs`. >>>> I suggested this to you somewhere mid-February just as the quickest >>>> solution to get stable nixpkgs because you wanted sass and there were some >>>> Ruby-related changes going on in master. >>>> >>>> Again, the quickest solution now is to replace the first line with: >>>> >>>> ~~~~ >>>> let pkgs = (import <nixpkgs> {}).pkgs; >>>> ~~~~ >>>> >>>> But it’s probably better to figure things out. >>>> First of all, it might be the case that Ruby things on master >>>> stabilised and you’ll be able to switch back to unstable and get sass >>>> working. I have no idea, as I don’t use Ruby, we need an advise from >>>> someone who knows what’s going on with Ruby in nixpkgs. >>>> Another posibility is to be honest and rename the stable nixos channel >>>> to `nixos` and then set `$NIX_PATH` to >>>> `nixpkgs=$HOME/.nix-defexpr/channels/nixos/nixpkgs`. There might be a >>>> better way to do this with `~/.nix-defexpr` but I actually still have no >>>> idea how it works, so we need someone else’s advice here again. >>>> >>>> >>>> On Sun, Mar 1, 2015 at 5:12 PM Catonano <caton...@gmail.com> wrote: >>>> >>>>> 2015-01-15 15:16 GMT+01:00 Luca Bruno <lethalma...@gmail.com>: >>>>> >>>>>> let pkgs = import <nixpkgs> {}; >>>>>> in pkgs.myEnvFun { >>>>>> name = "openArpa-env"; >>>>>> buildInputs = with pkgs.python27Packages; [ >>>>>> python >>>>>> xlrd >>>>>> >>>>>> ]; >>>>>> }; >>>>>> >>>>>> Then nix-shell. >>>>>> >>>>> >>>>> This worked. Now I'm back to this little project, as I have to process >>>>> a new batch of files and the thing doesn't work anymore >>>>> >>>>> $ nix-shell >>>>> error: attribute ‘myEnvFun’ missing, at "/home/catonano/Taranto/ >>>>> openpuglia/openArpa/default.nix":2:4 >>>>> >>>>> I migh have installed nix-packages from scratch since then, I'm not >>>>> sure >>>>> >>>>> Now it's >>>>> >>>>> $ nix-env --version >>>>> nix-env (Nix) 1.8 >>>>> >>>>> >>>>> _______________________________________________ >>>>> nix-dev mailing list >>>>> nix-dev@lists.science.uu.nl >>>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev >>>>> >>>> >>> _______________________________________________ >>> nix-dev mailing list >>> nix-dev@lists.science.uu.nl >>> http://lists.science.uu.nl/mailman/listinfo/nix-dev >>> >>> >> >
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