text: #!/usr/bin/env python
  
  from __future__ import print_function
  from future.standard_library import install_aliases
  install_aliases()
  
  from urllib.parse import urlparse, urlencode
  from urllib.request import urlopen, Request
  from urllib.error import HTTPError
  
  import json
  import os
  
  from flask import Flask
  from flask import request
  from flask import make_response
  
  # Flask app should start in global layout
  app = Flask(__name__)
  
  
  @app.route('/webhook', methods=['POST'])
  def webhook():
      req = request.get_json(silent=True, force=True)
  
      print("Request:")
      print(json.dumps(req, indent=4))
  
      res = processRequest(req)
  
      res = json.dumps(res, indent=4)
      # print(res)
      r = make_response(res)
      r.headers['Content-Type'] = 'application/json'
      return r
  
  
  def processRequest(req):
      if req.get("result").get("action") != "yahooWeatherForecast":
          return {}
      baseurl = "https://query.yahooapis.com/v1/public/yql?"
      yql_query = makeYqlQuery(req)
      if yql_query is None:
          return {}
      yql_url = baseurl + urlencode({'q': yql_query}) + "&format=json"
      result = urlopen(yql_url).read()
      data = json.loads(result)
      res = makeWebhookResult(data)
      return res
  
  
  def makeYqlQuery(req):
      result = req.get("result")
      parameters = result.get("parameters")
      city = parameters.get("geo-city")
      if city is None:
          return None
  
      return "select * from weather.forecast where woeid in (select woeid from geo.places(1) where text='" + city + "') and u= 'c'"
  
  
  def makeWebhookResult(data):
      query = data.get('query')
      if query is None:
          return {}
  
      result = query.get('results')
      if result is None:
          return {}
  
      channel = result.get('channel')
      if channel is None:
          return {}
  
      item = channel.get('item')
      location = channel.get('location')
      units = channel.get('units')
      if (location is None) or (item is None) or (units is None):
          return {}
  
      condition = item.get('condition')
      if condition is None:
          return {}
      forecast = item.get('forecast')
      if forecast is None:
          return {}
      for i in range(0,9):
          i = forecast.get('i')
              
      
       
      # print(json.dumps(item, indent=4))
      
      speech =  "Weather Forecast in " + location.get('city') + ": " + condition.get('text') + \
               ", the temperature is " + condition.get('temp') + " " + units.get('temperature') + " for " + condition.get('date') + " Forecast details: " + i.get('text')
                  
      print("Response:")
      print(speech)
      
      return {
          "speech": speech,
          "displayText": speech,
          # "data": data,
          # "contextOut": [],
          "source": "apiai-weather-webhook-sample"
      }
  
  
  if __name__ == '__main__':
      port = int(os.getenv('PORT', 5000))
  
      print("Starting app on port %d" % port)
  
      app.run(debug=False, port=port, host='0.0.0.0')
  