Tornado - Get variable from URL -

i have 2 handlers. in first 1 (foohandler) show form, in method, , value of field, post method. once obtained value wanna pass handler through uri. barhandler catch , able make query.

class foohandler(tornado.web.requesthandler):     def get(self):         self.render("templates/fooform.html")       def post(self):         var1 = self.get_argument('var1') #number          self.redirect('/query/{}'.format(var1))   class barhandler(tornado.web.requesthandler):     def get(self, var1):         q = query....  def main():     io_loop = tornado.ioloop.ioloop.instance()     connect("test", host="localhost", port=27017, io_loop=io_loop)      app = tornado.web.application(     [         (r"/", foohandler),         (r"/query/\d+", barhandler)         ], debug = true,     )     app.listen(8888)     tornado.ioloop.ioloop.current().start()  if __name__ == "__main__":     main() 

i error:

    traceback (most recent call last):   file "/usr/local/lib/python2.7/dist-packages/tornado/web.py", line 1443, in _execute     result = method(*self.path_args, **self.path_kwargs) typeerror: get() takes 2 arguments (1 given) 

i'm not sure how pass var1 foohandler , catch in barhandler. suggestion?

from documentation:

any groups in regex passed in handler’s get/post/etc methods arguments.

you need use group in regex path, if want pass part of path handler.

you should define path as:

(r"/query/(\d+)", barhandler)