argument. Omitting this argument will result in a DeprecationWarn- ing on Python 3.10. 6.4.4 tornado.tcpclient — IOStream connection factory A non-blocking TCP connection factory. class tornado.tcpclient been removed. • TLS is now configured according to ssl.create_default_context by default. tornado.tcpclient • The io_loop argument to the TCPClient constructor has been removed. • TCPClient.connect “subprocess still running” warnings on Python 3.6. • Improved error handling in cpu_count. tornado.tcpclient • TCPClient now supports a source_ip and source_port argument. • Improved error handling for

Convenient wrappers for non-blocking socketstornado.netutil — Miscellaneous network utilities tornado.tcpclient — IOStream connection factory tornado.tcpserver — Basic IOStream-based TCP server Coroutines BlockingResolver ThreadedResolver OverrideResolver ssl_options_to_context() ssl_wrap_socket() tornado.tcpclient — IOStream connection factoryTCPClient TCPClient.connect() tornado.tcpserver — Basic IOStream-based create_default_context [https://docs.python.org/3/library/ssl.html#ssl.create_default_context] by default. tornado.tcpclient The io_loop argument to the TCPClient constructor has been removed. TCPClient.connect has a