Python:
Example of a direct messenger program. In particular, the program will perform as follows:
It must behave as either a client or a server, depending on the command line arguments supplied when started.
Specifically, the -l option will direct the program to listen for connections, thereby acting as a server. If the -l option is not present on the command line, your program will connect to a server, thereby acting as a client. > [ >]
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