Hostname into an IP Address:
#!/usr/bin/env python
import socket
hostname = 'maps.google.com'
addr = socket.gethostbyname(hostname)
print 'The address of', hostname, 'is', addr#!/usr/bin/env python
import socket, sys
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
HOST = sys.argv.pop() if len(sys.argv) == 3 else '127.0.0.1'
PORT = 1060
def recv_all(sock, length):
data = ' '
while len(data) < length:
more = sock.recv(length - len(data))
if not more:
raise EOFError('socket closed %d bytes into a %d-byte message'
% (len(data), length))
data += more » return data
if sys.argv[1:] == ['server']:
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((HOST, PORT))
s.listen(1)
while True:
print 'Listening at', s.getsockname()
sc, sockname = s.accept()
print 'We have accepted a connection from', sockname
print 'Socket connects', sc.getsockname(), 'and', sc.getpeername()
message = recv_all(sc, 16)
print 'The incoming sixteen-octet message says', repr(message)
sc.sendall('Farewell, client')
sc.close() » » print 'Reply sent, socket closed'
elif sys.argv[1:] == ['client']: » s.connect((HOST, PORT))
print 'Client has been assigned socket name', s.getsockname() » s.sendall('Hi there, server')
reply = recv_all(s, 16)
print 'The server said', repr(reply)
s.close()
else:
print >>sys.stderr, 'usage: tcp_local.py server|client [host]'