TCP port check of Python script

The script source file is:

# cat tcp_checker.py #!/usr/bin/env pythonimport socketimport reimport  Sysdef check_server (address, port):     # create a tcp socket     s = socket.socket ()     print  "\033[33mattempting  to connect to %s on port %s\033[0m " %  (address, port)      try:        s.connect ((address, port))          print  "\033[32mconnected to %s on port  %s\033[0m " %  (address, port)         return  true    except socket.error, e:         print  "\033[31mconnection to %s on port %s failed: %s\033[0m"  %   (ADDRESS, PORT,&NBsp;e)         return Falseif __name__ ==  "__main__" :     from optparse import optionparser    parser =  optionparser ()     parser.add_option ("-A",  "--address",  dest= "address",  default= ' localhost ',                        help= "Address for server, default is  localhost ",  metavar=" ADDRESS ")     parser.add_option ("-P ", "--port ",  Dest= "Port",  type= "int", default=80,                       help= "PORT for server,  Default is 80 ",  metavar=" PORT ")      (Options,args)  = parser.parse_ Args ()     print  "options: %s, args: %s"  %  (Options, args)      check = check_server (Options.address, options.port)     print   "check_server returned %s"  % check    sys.exit (Not check)

The result of the operation is:

# python tcp_checker.py-a 192.168.56.108-p 4000options: {' Port ': 4000, ' address ': ' 192.168.56.108 '}, args: []attempting To connect to 192.168.56.108 on port 4000Connected to 192.168.56.108 on port 4000check_server returned True

This article is from the "Tiandaochouqin" blog, make sure to keep this source http://lavenliu.blog.51cto.com/5060944/1690415

TCP port check of Python script