Python网络编程示例-优快云博客

本文链接：https://blog.youkuaiyun.com/way88liu/article/details/8716119

本文通过两个示例展示了如何使用Python进行基本的网络编程。首先创建了一个套接字并连接到远程主机，显示了连接的一些基本信息。第二个示例则演示了如何发送HTTP请求并接收响应数据。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

网络连接：

import socket

print "creating socket"

s = socket.socket(socket.AF_INET , socket.SOCK_STREAM)
print "done"

print "looking up port number..."
port = socket.getservbyname("http","tcp")

print "connecting to remote host on port %d.." %port

s.connect(("www.baidu.com",port))
print "done"

print "Connect from" , s.getsockname()
print "Connected to" , s.getpeername()

连接并打印连接的一些信息

import socket ,sys

host = sys.argv[1]
textport = sys.argv[2]
filename = sys.argv[3]

try:
    s =socket.socket(socket.AF_INET , socket.SOCK_STREAM)
except socket.error,e:
    print "strange error creating socket: %s"%e
    sys.exit(1)

try:
    port = int(textport)
    print "*"*20
    print port
except ValueError:
    try:
        port = socket.getservbyname(textport, 'tcp')
        print port
    except socket.error,e:
        print "could not find you port %d"%port
        sys.exit(1)

try:
    s.connect((host,port))
except socket.gaierror, e:
    print "address-related error"
    sys.exit(1)

except socket.error, e:
    print "connect error:%s" %e
    sys.exit(1)

try:
    s.sendall("GET %s HTTP/1.0\r\n\r\n"%file)
    print "sendall"
except socket.error,e:
    print "error sending data:%s"%e
    sys.exit(1)

while 1:
    try:
        print "in while 1"
        buf = s.recv(2048)
        print "before buf"
        print buf
    except socket.error,e:
        print "error receiving data:%s" %e
        sys.ecxit(1)

    if not len(buf):
        break
    sys.stdout.write(buf)

python网络编程