list concatenation

modules/dev/python.nix

@@ -10,28 +10,27 @@
     home-manager.users.jawz.xdg.configFile."python/pythonrc".source = ../../dotfiles/pythonrc;
     environment.variables.PYTHONSTARTUP = "\${XDG_CONFIG_HOME}/python/pythonrc";
     users.users.jawz.packages =
-      let
-        packages = builtins.attrValues {
-          inherit (pkgs)
-            pipenv # python development workflow for humans
-            pyright # LSP
-            ;
-        };
-        pythonPackages = builtins.attrValues {
-          inherit (pkgs.python3Packages)
-            black # Python code formatter
-            editorconfig # follow rules of contributin
-            flake8 # wraper for pyflakes, pycodestyle and mccabe
-            isort # sort Python imports
-            pyflakes # checks source code for errors
-            pylint # bug and style checker for python
-            speedtest-cli # check internet speed from the comand line
-            ;
-        };
-      in
-      packages
+      builtins.attrValues {
+        inherit (pkgs)
+          pipenv # python development workflow for humans
+          pyright # LSP
+          ;
+      }
       ++ [
-        (pkgs.python3.withPackages (_ps: pythonPackages))
+        (pkgs.python3.withPackages (
+          _ps:
+          builtins.attrValues {
+            inherit (pkgs.python3Packages)
+              black # Python code formatter
+              editorconfig # follow rules of contributin
+              flake8 # wraper for pyflakes, pycodestyle and mccabe
+              isort # sort Python imports
+              pyflakes # checks source code for errors
+              pylint # bug and style checker for python
+              speedtest-cli # check internet speed from the comand line
+              ;
+          }
+        ))
       ];
   };
 }