Jacoby6000h: I've added an overlay   neovim = super.neovim.override ( {
    vimAlias = false;
    extraPython3Packages = [ (super.pkgs.python36.withPackages (ps: [
      ps.neovim ps.pandas ps.pycodestyle super.pkgs.neovim-remote ps.python ]))];
    });
which seems to work ok