Breakpoints inside Flask-RESTful class methods aren't hit on PTVS

I'm using Python Tools for Visual Studio, and I've set up a project with a virtual environment and installed Flask-RESTful there. Then, I just copied their hello world example ``` from flask import Flask from flask.ext.restful import reqparse, abort, Api, Resource app = Flask(__name__) app.debug = True api = Api(app) TODOS = { 'todo1': {'task': 'build an API'}, 'todo2': {'task': '?????'}, 'todo3': {'task': 'profit!'}, } def abort_if_todo_doesnt_exist(todo_id): if todo_id not in TODOS: abort(404, message="Todo {} doesn't exist".format(todo_id)) parser = reqparse.RequestParser() parser.add_argument('task', type=str) # Todo # show a single todo item and lets you delete them class Todo(Resource): def get(self, todo_id): abort_if_todo_doesnt_exist(todo_id) return TODOS[todo_id] def delete(self, todo_id): abort_if_todo_doesnt_exist(todo_id) del TODOS[todo_id] return '', 204 def put(self, todo_id): args = parser.parse_args() task = {'task': args['task']} TODOS[todo_id] = task return task, 201 # TodoList # shows a list of all todos, and lets you POST to add new tasks class TodoList(Resource): def get(self): return TODOS def post(self): args = parser.parse_args() todo_id = 'todo%d' % (len(TODOS) + 1) TODOS[todo_id] = {'task': args['task']} return TODOS[todo_id], 201 ## ## Actually setup the Api resource routing here ## api.add_resource(TodoList, '/todos') api.add_resource(Todo, '/todos/<string:todo_id>') if __name__ == '__main__': app.run(debug=True) ``` Everything works fine, and if I put breakpoints on the lines that are executed before starting the `app.run(debug=True)` they're hit (with F10 and F11 working great, and local variables being updated as expected) However, I'd love to debug what happens when a request is processed, but if I add breakpoints to the methods of the `Todo` or `TodoList` classes, they're never hit. I added code (like `print('here')`) to see if they're being processed and they are... also, they're returning what I expect when opened from a browser. Is there something I'm missing from the setup? Thanks! UPDATE: I found out that if I attach VS to the python.exe process that's running my code, I'm able to debug those methods... so I guess that the question is now: can I force VS to attach to the process once it's launched as it does with regular .NET apps?