python interface (API) provided by the network and the relationship between API Linux Socket inquiry

First, in a simple hello / hi network chat program as an example, it uses the Socket API interface functionality is provided by the program python: The client sends a message to the server, the server returns a message to the client

server.py

Import Socket 

Host = ' 127.0.0.1 ' 
Port = 1234 
serv_sock = socket.socket (socket.AF_INET, socket.SOCK_STREAM) 
serv_sock.bind ((Host, Port)) 
serv_sock.listen ( 10 )
 # receiving client socket 
clnt_sock , addr = serv_sock.accept () 
MSG = clnt_sock.recv (1024 ) 
str_msg = msg.decode ( " UTF-. 8 " )
 # returned to the client message 
r_msg = " the Hi, " + str_msg [10 :] 
clnt_sock.send ( r_msg.encode ( " UTF-. 8 "))
 # Close the connection 
serv_sock.close () 
clnt_sock.close ()

client.py

Import Socket 

Host = ' 127.0.0.1 ' 
Port = 1234 
our sock = socket.socket (socket.AF_INET, socket.SOCK_STREAM) 
sock.connect ((Host, Port)) 
# send data to the server 
MSG = INPUT ( " INPUT: " ) 
sock.send (msg.encode ( " UTF-. 8 " ))
 # receiving server returns the message 
to recive = sock.recv (1024 )
 Print (to recive) 

sock.close ()

In the simple chat program, a function call to the python provides the following network

• socket.socket(family=AF_INET, type=SOCK_STREAM, proto=0, fileno=None)
• socket.connect(Address), wherein the address is a tuple (
• socket.bind(address)
• socket.listen([backlog])
• socket.accept()