library asyncio module and shares the same event loop (by default since Tornado 5.0). In general, libraries designed for use with asyncio can be mixed freely with Tornado. 9Tornado Documentation, Release This method uses a SIGCHLD handler, which is a global setting and may conflict if you have other libraries trying to handle the same signal. If you are using more than one IOLoop it may be necessary to call recommended for use in AF_INET (i.e. IPv4). This is the default for tornado.simple_httpclient, but other libraries may default to AF_UNSPEC. Deprecated since version 6.2: This class is deprecated and will be removed

html#module-asyncio] module and shares the same event loop (by default since Tornado 5.0). In general, libraries designed for use with asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] can This method uses a SIGCHLD handler, which is a global setting and may conflict if you have other libraries trying to handle the same signal. If you are using more than one IOLoop it may be necessary to call recommended for use in AF_INET (i.e. IPv4). This is the default for tornado.simple_httpclient, but other libraries may default to AF_UNSPEC. Deprecated since version 6.2: This class is deprecated and will be removed