# shell.nix { pkgs ? import {} }: let my-python = pkgs.python3; python-with-my-packages = my-python.withPackages (p: with p; [ icecream python-ctags3 jinja2 click pypandoc # other python packages you want ]); in pkgs.mkShell { buildInputs = [ python-with-my-packages pkgs.pandoc # other dependencies ]; shellHook = '' PYTHONPATH=${python-with-my-packages}/${python-with-my-packages.sitePackages} alias build='python3 src/kitaab-public/main.py' # maybe set more env-vars ''; }