i didn't remember how to bind lol

a2/receiver.py

@@ -22,7 +22,7 @@ arrlog = open("arrival.log", "a")
 expected = 0 # next packet # expected
 confirmed = None # last confirmed packet
 sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # socket!
-sock.bind(('localhost', rport)) # set socket to recv on rport
+sock.bind(('', rport)) # set socket to recv on rport
 pack_size = 512 # packet size in bytes
 
 # let's get this bread! I mean packets. yes, I re-used that joke.

a2/sender.py

@@ -48,7 +48,7 @@ winsize = min(winsize, total_packets)
 
 # create socket
 sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-sock.bind(('localhost', rport))
+sock.bind(('', rport))
 
 # start receiver thread
 # receiver function