various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve Documentation, Release 6.1 from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response.body gen module: from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url) raise

various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve Documentation, Release 5.1.1 from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response.body gen module: from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url) raise

various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response.body Release 6.0.4 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url) raise

and various supporting classes). Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). An asynchronous networking library including the classes IOLoop and IOStream, which serve as with a callback argument: from tornado.httpclient import AsyncHTTPClient def asynchronous_fetch(url, callback): http_client = AsyncHTTPClient() def handle_response(response): callback(response callback: from tornado.concurrent import Future def async_fetch_future(url): http_client = AsyncHTTPClient() my_future = Future() fetch_future = http_client.fetch(url) fetch_future.add_done_callback(

various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve with a callback argument: from tornado.httpclient import AsyncHTTPClient def asynchronous_fetch(url, callback): http_client = AsyncHTTPClient() 10 Chapter 4. Documentation Tornado Documentation, Release callback: from tornado.concurrent import Future def async_fetch_future(url): http_client = AsyncHTTPClient() my_future = Future() fetch_future = http_client.fetch(url) fetch_future.add_done_callback(

various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response.body Release 6.2 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url) raise

and various supporting classes). Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). An asynchronous networking library including the classes IOLoop and IOStream, which serve as asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response gen module: from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url)

various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response.body Release 6.5.1 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url) raise

various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response.body Release 6.4 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url) raise

various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library including the classes IOLoop and IOStream, which serve asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() response = await http_client.fetch(url) return response.body Release 6.4 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client = AsyncHTTPClient() response = yield http_client.fetch(url) raise