python - Is this right way to call coroutine method in Tornado framework? -

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i have websockethandler in tornado application. not sure right way make code asynchronous.

class myhandler(websockethandler):     def open(self):         ...         self.my_coroutine_method()      @gen.coroutine     def my_coroutine_method(self):         user = yield db.user.find_one() # call motor asynchronous engine         self.write_message(user)

yes, correct. however, in cases calling coroutine without yielding can cause exceptions handled in unexpected ways, recommend using ioloop.current().spawn_callback(self.my_coroutine_method) when calling coroutine non-coroutine this.


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