Coroutines Native vs decorated coroutines How it works How to call a coroutine Coroutine patterns Calling blocking functions Parallelism Interleaving Looping Running in the background Queue example - a wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations

Coroutines Native vs decorated coroutines How it works How to call a coroutine Coroutine patterns Calling blocking functions Parallelism Interleaving Looping Running in the background Queue example - a wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations

wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations error page as described above: either by raising a HTTPError(404) and overriding write_error, or calling self.set_status(404) and producing the response directly in prepare(). Redirection There are two

wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations error page as described above: either by raising a HTTPError(404) and overriding write_error, or calling self.set_status(404) and producing the response directly in prepare(). Redirection There are two

wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations error page as described above: either by raising a HTTPError(404) and overriding write_error, or calling self.set_status(404) and producing the response directly in prepare(). Redirection There are two

async and await How it works How to call a coroutine Coroutine patterns Interaction with callbacks Calling blocking functions Parallelism Interleaving Looping Running in the background Queue example - a # some_function(other_args, callback=callback) yield gen.Task(some_function, other_args) Calling blocking functions The simplest way to call a blocking function from a coroutine is to use a ThreadPoolExecutor instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations

Coroutines Native vs decorated coroutines How it works How to call a coroutine Coroutine patterns Calling blocking functions Parallelism Interleaving Looping Running in the background Queue example - a wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations

into # some_function(other_args, callback=callback) yield gen.Task(some_function, other_args) Calling blocking functions The simplest way to call a blocking function from a coroutine is to use a ThreadPoolExecutor instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in situations error page as described above: either by raising a HTTPError(404) and overriding write_error, or calling self.set_status(404) and producing the response directly in prepare(). Redirection There are two

wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to ter- minate the handler without calling write_error in situations error page as described above: either by raising a HTTPError(404) and overriding write_error, or calling self. set_status(404) and producing the response directly in prepare(). Redirection There are two

wrap the # call in a lambda. IOLoop.current().run_sync(lambda: divide(1, 0)) Coroutine patterns Calling blocking functions The simplest way to call a blocking function from a coroutine is to use IOLoop instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to ter- minate the handler without calling write_error in situations error page as described above: either by raising a HTTPError(404) and overriding write_error, or calling self. set_status(404) and producing the response directly in prepare(). Redirection There are two