Python version WC

#!/usr/bin/env python#coding:utf8from optparse import optionparserimport sys,osdef  opt ():     parser = optionparser ()     parser.add_option ("-C", "--char",                       dest= "Chars",                       action= "Store_true",                        default=False,                       help= "Only count chars")          parser.add_option ("-W", "--word",                       dest= "Words",                       action= "Store_true",                        default=False,                       help= "Only count words")          parser.add_option ("-L", "--line",                       dest= "Lines",                        action= "Store_true",                       default=false,                       help= "Only count lines ")      parser.add_option ("-N ","--no-total ",                       dest= "Nototal",                        action= "Store_true",                       default=False,                       help= "No  total ")     options,args = parser.parse_args ()       return options, args "parameter module" def get_count (data):     chars = len (data)      words = len (Data.split ())     lines = data.count (' \ n ')      return lines,words,chars ' statistical module '     DEF PRINT_WC (options, LINES,WORDS,CHARS,FN):    if options.lines:         print lines,    if options.words:         print words,    if options.chars:         PRINT CHARS,    PRINT FN ' Judging parameters ' ' Def main ():     options,args = opt ()     if not  (options.lines or  options.words or options.chars):         options.lines  , options.words , options.chars = true,true,true     "" To determine if there are parameters, if no parameters, then output all parameters ' '      if args:        total_lines,total_words,total_chars  = 0,0,0        for fn in args:             if os.path.isfile (FN):                 with open (FN)  as  fd:                     data = fd.read ()                  lines,words,chars = get_count (data)                  PRINT_WC (OPTIONS,LINES,WORDS,CHARS,FN)                  total_lines += lines                 total_words += words                 total_chars  += chars            elif  Os.path.isdir (FN):                 print >> sys.stderr, "%s: is a directory"  %fn             else:                 sys.stderr.write ("%s: no such file or  direcotry\n " %fn)         if len (args)  > 1  And not options.nototal:&nbsP;           PRINT_WC (Options,total_lines,total_words, Total_chars, ' total ')     else:        data =  sys.stdin.read ()         fn =  " "          lines,words,chars = get_count (data)          PRINT_WC (OPTIONS,LINES,WORDS,CHARS,FN) if __name__ ==  ' __main__ ':     main ()

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Python version WC