result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client a native coroutine: 14 Chapter 6. Documentation Tornado Documentation, Release 6.1 from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() body Or for compatibility with older versions of Python, using the tornado.gen module: from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client response.body And here is the same function rewritten asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() tornado.gen module: 14 Chapter 6. Documentation Tornado Documentation, Release 6.4 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client response.body And here is the same function rewritten asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() tornado.gen module: 14 Chapter 6. Documentation Tornado Documentation, Release 6.2 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client response.body And here is the same function rewritten asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() tornado.gen module: 14 Chapter 6. Documentation Tornado Documentation, Release 6.4 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client response.body And here is the same function rewritten asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() tornado.gen module: 14 Chapter 6. Documentation Tornado Documentation, Release 6.4 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client response.body And here is the same function rewritten asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() tornado.gen module: 14 Chapter 6. Documentation Tornado Documentation, Release 6.3.3 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client response.body And here is the same function rewritten asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() tornado.gen module: 14 Chapter 6. DocumentationTornado Documentation, Release 6.5.1 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client response.body And here is the same function rewritten asynchronously as a native coroutine: from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() tornado.gen module: 14 Chapter 6. Documentation Tornado Documentation, Release 6.0.4 from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client

communication to the browser HTTP servers and clients tornado.httpserver — Non-blocking HTTP server tornado.httpclient — Asynchronous HTTP client tornado.httputil — Manipulate HTTP headers and URLs tornado.http1connection access). A function can be blocking in some respects and non-blocking in others. For example, tornado.httpclient in the default configuration blocks on DNS resolution but not on other network access (to mitigate actually make things asynchronous). Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response =

result with the await or yield keywords. Examples Here is a sample synchronous function: from tornado.httpclient import HTTPClient def synchronous_fetch(url): http_client = HTTPClient() response = http_client native coroutine: 12 Chapter 5. Documentation Tornado Documentation, Release 5.1.1 from tornado.httpclient import AsyncHTTPClient async def asynchronous_fetch(url): http_client = AsyncHTTPClient() body Or for compatibility with older versions of Python, using the tornado.gen module: from tornado.httpclient import AsyncHTTPClient from tornado import gen @gen.coroutine def async_fetch_gen(url): http_client