Cannot get Flask CLI to see Python plugin without using nix-shell

[matthewcroughan]

Flask patch reversion causing breakage in development mode

Python: flask app can't find dependencies

I’m trying to set up a nix-shell to develop a Flask application, and I set up a minimal example that depends on flask and flask-restful. The relevant import statements are: # nix_flask/app.py from flask import Flask from flask_restful import Resource, Api My shell.nix is: with (import (builtins.fetchTarball { url = "https://github.com/NixOS/nixpkgs/archive/8746c77a383f5c76153c7a181f3616d273acfa2a.tar.gz"; }) { }); ( python37.withPackages (ps: with ps; [ flask flask-restful ]) ).env If I s…