add devShell for python

README.md

@@ -9,3 +9,8 @@ This repo contains a bunch of handy dev shells that can used on any system that
  - can be activated with `nix develop github:adtya/devshells#go`
  - can also be activated with direnv by adding `use flake github:adtya/devshells#go` to `.envrc`
 
+### Python
+ - makes `python3`, `pipenv`, `pyright` and `black` available in path
+ - can be activated with `nix develop github:adtya/devshells#python`
+ - can also be activated with direnv by adding `use flake github:adtya/devshells#python` to `.envrc`
+ - additionally, adding `layout pipenv` to `.envrc` will also activate the pipenv shell based on Pipfile and Pipfile.lock

flake.nix

@@ -15,6 +15,7 @@
     {
       devShells = {
         go = import ./go.nix { inherit pkgs; };
+        python = import ./python.nix { inherit pkgs; };
       };
     }
   );

python.nix

@@ -0,0 +1,8 @@
+{ pkgs }: pkgs.mkShell {
+  packages = with pkgs; [
+    python3
+    python3Packages.black
+    nodePackages_latest.pyright
+    pipenv
+  ];
+}