from flask import Flask, request

import json

app = Flask(__name__)

@app.route('/')

def func():

    res = {

        'data': {

            'data1': [],

            'data2': []

        }

    }

    callback = request.values.get('callback')

    return ''.join([

        callback,

        '(',

        json.dumps(res),

        ');'

    ])

if __name__ == '__main__':

    cfg = {

        'host': '0.0.0.0',

        'port': 1234,

        'debug': True

    }

    '''

    // javascript code:

    $.ajax({

        url: "http://localhost:1234/",

        dataType: "jsonp",

        data: {},

        success: function(res) {

            console.log(res);

        }

    });'''

    app.run(**cfg)