Python wrote a WC command.

Python writes a WC command for sending and receiving data, and more learning communication please add 365534424 , directly on the code

#!/usr/bin/env python# coding:utf-8# author: 51reboot.com# qq Group:365534424from  OPTPARSE IMPORT OPTIONPARSERIMPORT OSCLASS WC (object):     def __ Init__ (self):        self.n = 0               # line num         self.error =  '         def run (self):         self.options = main ()          if self.options.l:             # wc -l            if  Self.get_line ():                 print self.n, self.options.filename            else:                 print self.error     def get_line (self):        if  Self.options.filename and os.path.exists (Self.options.filename)  :             try:                 with open (Self.options.filename)  as f:                     for  line in f:                         self.n +=1                 return True             except IOError:                 self.error =  ' File not readable '                  return False        else:             self.error =  ' file does not exist '              return False    def  Main ():     parser = optionparser ()     parser.add_option ('-l ') , help= ' Print the length of the longest line ', action= ' store_true ')       (Options,args)  = parser.parse_args ()     if len (args)  ==  1:        options.filename = args[0]    else:         options.filename =  '     return  optionsif __name__ ==  ' __main__ ':     WC = WC ()      wc.run ()

This article is from the "Reboot DevOps Development" blog, please be sure to keep this source http://opsdev.blog.51cto.com/2180875/1569081

Python wrote a WC command.