Jonathan Schweder <jonathanschwe...@gmail.com> added the comment:
@ueJone according to the (RFC)[https://datatracker.ietf.org/doc/html/rfc6455#section-1.4] the FIN/ACK is not normative, in other words is recommended but not required, I've checked the syscalls of the server, see it below: ``` ... 1561 15143 write(2, "127.0.0.1 - - [11/May/2021 20:08"..., 60) = 60$ 1562 15143 sendto(4, "HTTP/1.0 200 OK\r\nServer: SimpleH"..., 154, 0, NULL, 0) = 154$ 1563 15143 sendto(4, "<!DOCTYPE HTML PUBLIC \"-//W3C//D"..., 728, 0, NULL, 0) = 728$ 1564 15143 shutdown(4, SHUT_WR) = 0$ 1565 15143 close(4) = 0$ ... ``` As you can see, Python is not the one sending or not sending the ACK/FIN codes, this is coming from the underlining OS implementation of the `close()`. My questions is, which OS are you using/testing this example? ---------- nosy: +jaswdr _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44107> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
