Flask’s sample code is doing a bunch of things like spinning up db and stuff and setting up a pytest fixture, so it’s not a fair comparison. You can replace

Flask’s sample code is doing a bunch of things like spinning up db and stuff and setting up a pytest fixture, so it’s not a fair comparison. You can replace with httpx.Client(app=app) as client: ... in the httpx sample code with with app.test_client() as client: ... for flask’s builtin test client and the rest is basically the same. Now that’s a fair comparison and neither is simpler than the other. I guess one advantage of httpx is that developers might generally be more familiar with the requests response object API than the werkzeug response object API.