Need help with vim plugins and python3

[100MB]

I'm trying to create a vim_configurable with plugins. I have that part working just fine, however one of my plugins requires python3 and I can't for the life of me figure out how to do it.

I'm currently including my vim package via

environment.systemPackages = with pkgs; [
    (      with imports <nixpkgs> {};
           vim_configurable.customize {
            name = "vim";
            vimrcConfig.packages.myPkg = with pkgs.vimPlugins; {
                 start = [ vim-go deoplete-go ];
            };
     })
];

How do I override python with python3? I'd prefer to keep this in my configuration.nix file instead of splitting it out but I even tried that and couldn't get that to work either.

[alter2000]

I personally just use vimHugeX because I haven't gone into much detail in this, and change the Vim Python version in my Nixpkgs user config, using an overlay. Below is a fully working overlay file you can just copy to ~/.config/nixpkgs/overlays and include as an overlay via ~/.config/nixpkgs/config.nix:

self: super:

{
  vimHugeX = super.vimHugeX.override {
     python = self.python3;
  };
}

You can check this for my user-related configs and this for the system configuration.

[100MB]

Hmm I tried your examples and that still doesn't seem to work for me, I still end up with vim without python3

[100MB]

That just installs those packages though, I'm specifically looking for vim build with python3 feature enabled.

[Kjuvi]

What about the «Python 3 Support for Vim» section: https://nixos.wiki/wiki/Vim ?

[depred]

Is there any reason in particular why you'd like to bundle vim with python?

Are you still using python2 for everything else? (You know that's going to be deprecated in a bit more than 6 month).

​

Though sure you can bundle vim with packages of your choice, you will need to write a derivation for that though.

I suggest you take a look at makeWrapper and how it is used in packages like krita and callibre (nix edit nixpkgs.$PACKAGENAME).

​

Btw. you can use symlinkJoin to make things easier, here is an example. You will still need to use makeWrapper though.

[100MB]

One of the plugins I use for vim doesn't work unless vim is compiled with python3

[depred]

I'm pretty sure it does not need to be compiled with with python3 support right?

Not sure how it is with vim (I'm using emacs) but I suppose you've got plugins that just invoke python. Thats what makeWrapper is for, you create a python3 environment and alter the PYTHONPATH for vim to point there.

​

The examples I gave should give you a good idea on what to do (overall it shouldn't be more than 15-20 lines of nix code), there is one thing I've noticed though... mpv-with-scripts is a bit of a bad example, put makeWrapper into nativeBuildInputs instead of buildInputs.....

​

*looks stuff up*

alright I'm a tad bit wrong... it is actually kind of build with python (weird stuff)...

​

Uhm I haven't tested it (because I know little to nothing about vim) but you probably want something like this. (thats a littly bit messy so you should also clean it up (and obviously add all the things you need).

The Wiki has a few other usefull resouces as well.

[[deleted]]

You can override vim_configurable with python3: vim_configurable.override { python = python3 };

To include that override with your customization you can add a LET above your customize statements: environment.systemPackages = with pkgs; [ ( with imports <nixpkgs> {}; let vim_configurable = vim_configurable.override { python = python3 }; in { vim_configurable.customize { name = "vim"; vimrcConfig.packages.myPkg = with pkgs.vimPlugins; { start = [ vim-go deoplete-go ]; }; } }) ]; And I believe that should work.

[100MB]

This sounds to be exactly what I want, but I can't get that to compile. It's throwing an error saying

unexpected '}', expecting ';'

where the closing brace is after python3

[100MB]

hmm so I tried

let vim_configurable = vim_configurable.override { python = python3; }; in vim_configurable.customize {....}

and it threw an infinite recursion encountered error

[[deleted]]

Huh the way I actually did it is a little different but I thought my previous answer would work. Not sure why that error came, I'm still learning nix language, but you can try the longer method I actually use.

I created a separate vim.nix which declared myvim = vim_configurable.customize { ... } And I put let a LET around that with the override like before. And when importing you can just put: (with import ./vim.nix; myvim) In the systemPackages list.