ping program in Python

[Skaperen]

i know what the system ping command has to do for its basic use. i wanted to see how that would be done in Python. in particular, i want to see how it waits for the arriving replies at any point in time and keeps on sending the ping requests whether any replies arrive or not. does it "cheat" and run 2 threads, one to send ping requests (up to how many requested) and one to receive replies (up to the proper time) and print the per-reply stats (duration of round-trip, etc).

then i would see how easy to have it track the state of reachability of the specified remote interface, with local actions to deal with it.