Wredk 10-5 Ps- Rob- Fes- me ton- Would youi like to haye a cotfer Thre.pdf

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Wredk 10.5 Ps: Rob: Fes, me ton, Would youi like to haye a cotfer Threshiole: Anna: Sure Rng: will moct you... Task 1 Cieste vient for the lollosine servet implementstiver rephine with the cliemt's nume There should be definite ward/'wonde suggesting that the conversation ls oner. Excellent: Create a simple shoppinf, system which will allow the user to add or remove elements to a Irso reeket ixpert + basket. Each user transsction should be sent into a server and save there in a form of a text file. Wse pidkle to send the uaser transartion to the saver. anderea = incsi, fetrit * = mekeciditiket, rock_resuy abdad,anceres ; andhibeu12) shale triel (Aitant, astman) = averotall inertedesecis Task 2 (optiunal) Write a client, server apoliation imitatire vunversations beiween Ductor arid Palient Trpical; Modify the cliant.py and scrune py appliaation to broame clicat saron chat application. Thwe application stould ask and then rlsobloy name of sender and recoluer resipertively- Example: Anns: HI! Rob: H , how are you? Anne: l'm rood, you?.

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Of the variedtypes of IPC, sockets arout and awaythe foremostcommon. On any given platform, there arprobably to be differenttypes of IPC that arquicker, except for cross-platform communication, sockets arregardingthe sole game in city. They were fancied in Berkeley as a part of the BSD flavor of UNIX operating system. They unfold like inferno withthe web. With sensible reason — the mixture of sockets with INET makes reprehensionabsolute machines round the world incrediblystraightforward (at least compared to different schemes). Creating a Socket Roughly speaking, once you clicked on the link that brought you to the current page, your browser did one thingjust like the following: #create Associate in Nursing INET, STREAMing socket s = socket.socket( socket.AF_INET, socket.SOCK_STREAM) #now connect withthe net server on port eighty # - the traditionalcommunications protocol port s.connect((\"www.mcmillan-inc.com\", 80)) When the connect completes, the socket s may beaccustomedsend outa call for participation for the text of the page. a similar socket canbrowse the reply, so be destroyed. That’s right, destroyed. shopper sockets arunremarkablysolely used for one exchange (or atiny low set of sequent exchanges). What happens within thenet server may be a bit additionalcomplicated. First, the net server creates a “server socket”: #create Associate in Nursing INET, STREAMing socket serversocket = socket.socket( socket.AF_INET, socket.SOCK_STREAM) #bind the socket to a public host, # and a widely known port serversocket.bind((socket.gethostname(), 80)) #become a server socket serversocket.listen(5) A couple things to notice: we tend to used socket.gethostname() in order that the socket would be visible to the surface world. If we tend to had used s.bind((\'localhost\', 80)) or s.bind((\'127.0.0.1\', 80)) we\'d still have a “server” socket, however one that was solely visible insidea similar machine. s.bind((\'\', 80)) specifies that the socket isaccessible by any address the machine happens to own. A second issue to note: low range ports arsometimes reserved for “well known” services (HTTP, SNMP etc). If you’re kidding, use a pleasant high range (4 digits). Finally, the argument to pay attention tells the socket library that we wish it to queue as several as five connect requests (the traditional max) before refusing outside connections. If the remainder of the code is written properly,that ought to be masses. Now that we\'ve got a “server” socket, listening on port eighty, we will enter the mainloop of the net server: while 1: #accept connections from outside (clientsocket, address) = serversocket.accept() #now do one thing with the clientsocket #in this case, we\'ll fakethis can be a rib server ct = client_thread(clientsocket) ct.run() There’s trulythree general ways thatduring which this loop might work - dispatching a thread to handle clientsocket, producea replacementmethod to handle clientsocket, or structure this app to use non-blocking socke.

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