server_socket.py

import socket

#create socket - parameters tell type of socket (IP), and protocol (TCP)
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
#bind socket to address - all addresses on this computer, on port 8081
#8081 typically used for testing
server_socket.bind(("0.0.0.0", 8081))

#set socket to listen
server_socket.listen()
print("waiting for connection")

#accept socket - waits, accepts w/ two return
connection_socket, address = server_socket.accept()
print("client connected")


#added in section 1.8
#sends data
message = "Hello, thanks for connecting"
data = message.encode()  #encodes message as a series of bytes
connection_socket.send(data)

#challenge at the end of 1.8
#receive and display a response message
data = connection_socket.recv(1024)
response = data.decode()
print(response)

#close sockets
connection_socket.close()
server_socket.close()