Use Python to implement the Linux system WC command with the same effect

The code is as follows:

#!/usr/bin/python#*-*coding:utf8*-*import sysimport osfrom optparse import  Optionparser "" "Define Parameter" "" Parser = optionparser () parser.add_option ("-L",  "--line",                   dest= "Lines",                    action= "Store_true",                   default=False,                   help= "Only count lines") parser.add_option ("-W",  "--word",                   dest= " Words ",                   action= "Store_true",                   default= false,                   help= "Only count words") parser.add_option ("-C",  "--char",                   dest= "Chars",                   action= "Store_true",                    default=false,                   help= "Only count chars") parser.add_option ("-N",  "--nototal",                   dest= "Nototal",                   action= "Store_true",                   default= false,                   help= "No count total") Options, args = parser.parse_args () "" "displays different values according to the specified different options" " Def display (l, w, c):     global total_l    total_l  += l    global total_w    total_w += w     global total_c    total_c += c    if  not  (Options.words or options.chars or options.lines):         print (L),         print (W),       &nbsP; print (c),    if options.lines:         print (L),    if options.words:         Print (w),     if options.chars:        print (c ), "" "for file special processing, if it is 1 files above then you need to enter a total sum" "" Def dir (data):    if not  Os.path.exists (data):         sys.stderr.write ("%s no such  file or directory\n " %data)         return  False    if os.path.isdir (data):         Sys.stderr.write ("%s is a directory\n"  %data)          return False    return True         def readfile (data):   &Nbsp; for f in data:        b = dir (f)         if b:             with open (f)  as files:                 fd = files.read ()                  l = fd.count ("\ n")                  w = len (Fd.split ())                 c =  len (FD)                  Display (L, W, C)                  print (f)         else:             continue    if  (len (args)  > 1)  and  (not  Options.nototal):        l = total_l         w = total_w        c =  Total_c        display (l, w, c)          print ("Total") total_l = 0total_w = 0total_c = 0if  Len (args)  == 0:    data = sys.stdin.read ()     l  = data.count ("\ n")     w = len (Data.split ())     c  = len (data)     display (l, w, c) else:    data  = args     ReadFile (data) 

The results of the implementation are as follows:

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Use Python to implement the Linux system WC command with the same effect