get VK Api Token with bottle

app.py

import json
import requests
from bottle import route, run, redirect, request

APP_ID = YOUR APP ID
APP_SECRET = YOUR APP SECRET
SCOPE = YOUR APP SCOPE (e.g. 'photos,groups,offline')
REDIRECT_URI = YOUR APP OPEN API HOST (e.g. 'http://localhost:8080/auth')
TOKEN = ''

@route('/')
def index():
    return redirect('https://oauth.vk.com/authorize?client_id=%s&scope=%s&redirect_uri=%s&response_type=code' % (APP_ID, SCOPE, REDIRECT_URI))

@route('/auth')
def code():
    code = request.params['code']
    token_url = 'https://oauth.vk.com/access_token?client_id=%s&client_secret=%s&code=%s&redirect_uri=%s' % (APP_ID,APP_SECRET, code, REDIRECT_URI)
    r = requests.get(token_url)
    token = r.json()
    TOKEN = token['access_token']
    # Final TOKEN.
    return TOKEN

run(host='0.0.0.0', port=8080)

tested with Python3.4