reloader=true; not working help please

i am currently getting started with bottle framework (doing the hello world example and afterwards have to build a RESTful API). the problem is the fact that reloader doesnt work. when i make a change in the code and reload the page where the change should show nothing happens. it works on my other friends their computers so im am a bit confused and it also slows me down really fast (we have a deadline for this assignment :( using python 2.7 )

from bottle import route, run

@route('/hello')
def hello():
    return "Hello World!"

run(host='localhost', port=8080, debug=True, reloader =True)