pass to process for service print('server connected by'addressend='print('at'now()childpid os fork(copy this process if childpid = if in child processhandle handleclient(connectionelsego accept next connect dispatcher(where applicablethis technique ismuch simplerwe don' need to manually track or reap child processes more accurateit leaves no zombies temporarily between client requests in factonly one line is dedicated to handling zombies herethe signal signal call near the topto set the handler unfortunatelythis version is also even less portable than using os fork in the first placebecause signals may work slightly differently from platform to platformeven among unix variants for instancesome unix platforms may not allow sig_ign to be used as the sigchld action at all on linux systemsthoughthis simpler forking server variant works like charm]python fork-server-signal py [ server connected by ( ' at sun apr : : ps - uid pid ppid stime tty : pts/ : pts/ : pts/ : pts/ time cmd : : python fork-server-signal py : : python fork-server-signal py : : ps - : : -bash ]ps - uid pid ppid stime tty : pts/ : pts/ : pts/ time cmd : : python fork-server-signal py : : ps - : : -bash notice how in this version the child process' entry goes away as soon as it exitseven before new client request is receivedno "defunctzombie ever appears more dramaticallyif we now start up the script we wrote earlier that spawns eight clients in parallel (testecho pyto talk to this server remotelyall appear on the server while runningbut are removed immediately as they exit[client windowc:\pp \internet\socketstestecho py learning-python com [server window]server connected by ( ' at sun apr : : server connected by ( ' at sun apr : : server connected by ( ' at sun apr : : server connected by ( ' at sun apr : : network scripting