What's wrong with this code?

from flask import Blueprint

from flask.ext.restful import Resource, Api, reqparse, inputs

import models


class IngredientList(Resource):
     def __init__(self):
        self.reqparse = reqparse.RequestParser()
        self.reqparse.add_argument(
            'name',
            required=True,
            location=["form","json"]
        )
        self.reqparse.add_argument(
            'description',
            required=True,
            location=["form","json"]
        )
        self.reqparse.add_argument(
            'measurement_type',
            required=True,
            location=["form","json"]
        )
        self.reqparse.add_argument(
            'quantity',
            required=True,
            location=["form","json"],
            type=float
        )
        self.reqparse.add_argument(
            'recipe',
            required=True,
            location=["form","json"],
            type=inputs.positive
        )


    def get(self):
        return 'IngredientList'


class Ingredient(Resource):
    def get(self, id):
        return 'Ingredient'

ingredients_api = Blueprint('resources.ingredients', __name__)
api = Api(ingredients_api)
api.add_resource(IngredientList, '/api/v1/ingredients')
api.add_resource(Ingredient, '/api/v1/ingredients/<int:id>')