Sending json parse push notification from webapp2 google app engine

parsepush.py

import httplib
class PushParse(webapp2.RequestHandler):
    def get(self):
        connection = httplib.HTTPSConnection('api.parse.com', 443)
        connection.connect()
        connection.request('POST', '/1/push', json.dumps({
               "channels": [
                 "News"
               ],
                "data" : {
                          "alert": "Parse alert message",
                          "uri" : "http://www.parse.com",
                          "source" : "internal"     
                          }
             }), {
                "X-Parse-Application-Id": "*************",
                "X-Parse-REST-API-Key": "*****",
               "Content-Type": "application/json"
             })
        result = json.loads(connection.getresponse().read())
        self.write(result)