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Python Flask REST API API Protection Create User

Create User, Flask REST API challenge

I've set up most of a User resource for you but I want you to finish it.

Add two new requirements to the RequestParser for "password" and "confirm_password". Both should be required and in either "form" or "json" locations.

kindly assist l don't know where l am getting it wrong

resources/users.py
from flask import Blueprint

from flask.ext.restful import Resource, Api, reqparse, marshal_with, fields

import models

user_fields = {
    'username': fields.String
}


class UserList(Resource):
    def __init__(self):
        self.reqparse = reqparse.RequestParser()
        self.reqparse.add_argument(
            'username',
            required=True,
            location=['form', 'json']
        )
        self.reqparse = reqparse.RequestParser()
        self.reqparse.add_argument(
            'password',
            required=True,
            location=['form', 'json']
        )
        self.reqparse = reqparse.RequestParser()
        self.reqparse.add_argument(
            'confirm_password',
            required=True,
            location=['form', 'json']
        )

        super().__init__()

    @marshal_with(user_fields)
    def post(self):
        args = self.reqparse.parse_args()
        user = models.User.create(**args)
        return user, 201


users_api = Blueprint('resources.users', __name__)
api = Api(users_api)
api.add_resource(UserList, '/api/v1/users')

You do not have to define

 self.reqparse = reqparse.RequestParser() 

more than once.

Removing the two extra declarations should pass the step.