How to use parts of the url path as variables for a handler in Google App Engine

gistfile1.py

class RenderMovieShowTimes(webapp.RequestHandler):

    def get(self, cityid, movieid):
        # cityid and movieid will contain the passed variables
        # do something with them

application = webapp.WSGIApplication([ '/([^/]+)/([^/]+)' ])

def main():
    run_wsgi_app(application)