{ pkgs ? import { } , ... }: let python = pkgs.python39; in pkgs.mkShell { shellHook = '' export DJANGO_SETTINGS_MODULE=gestioasso.settings.local virtualenv .venv source .venv/bin/activate pip install -r requirements-devel.txt | grep -v 'Requirement already satisfied:' ''; packages = [ python ] ++ (with python.pkgs; [ django-types pip virtualenv python-ldap ]); allowSubstitutes = false; }