python - Difference between Flask abort() or returning a status

Question

What is the difference between abort(400) and returning a response with a 400 status? Is using return bad form for errors?

abort(400, "some error message")
# or
return {'message': "some error message"}, 400

Answer 1

abort raises an error, which an error handler will convert to a response. return returns a response, error handlers don't trigger. It's up to how you want your application to flow.