added server pushed events to example app

example/app.py

@@ -1,12 +1,25 @@
+import time
+from threading import Thread
 from flask import Flask, render_template, session, request
 from flask.ext.socketio import SocketIO, emit, join_room, leave_room
 
 app = Flask(__name__)
-app.debug=True
+app.debug = True
 app.config['SECRET_KEY'] = 'secret!'
 socketio = SocketIO(app)
 
 
+def background_thread():
+    """Example of how to send server generated events to clients."""
+    count = 0
+    while True:
+        time.sleep(10)
+        count += 1
+        socketio.emit('my response',
+                      {'data': 'Server generated event', 'count': count},
+                      namespace='/test')
+
+
 @app.route('/')
 def index():
     return render_template('index.html')
@@ -64,5 +77,5 @@ def test_disconnect():
 
 
 if __name__ == '__main__':
+    Thread(target=background_thread).start()
     socketio.run(app)
-