required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Changed in version 6.0: The callback argument

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Changed in version 6.0: The callback argument

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Deprecated since version 5.1: The callback

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Deprecated since version 5.1: The callback

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, json_encode in the context of a JavaScript string literal (including template strings), only in the top-level syntactic context. The automatic escaping behavior can be disabled globally by passing autoescape=None Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Changed in version 6.0: The callback argument

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Changed in version 6.0: The callback argument

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Changed in version 6.0: The callback argument

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported means yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. Changed in version 6.0: The callback argument

required for functions using async def (otherwise the coroutine runner will not start). Finally, at the top level of a program, if the IOLoop is not yet running, you can start the IOLoop, run the coroutine, Non-blocking HTTP client with no external dependencies. This class implements an HTTP 1.1 client on top of Tornado’s IOStreams. Some features found in the curl-based AsyncHTTPClient are not yet supported yielding the function if called from another coroutine, using something like IOLoop.run_sync for top-level calls, or passing the Future to IOLoop.add_future. tornado.gen.engine(func) Callback-oriented