Writing a class du command python script

1 #!/usr/bin/env python2 #_*_ coding:utf-8 _*_3 #to calculate the size of the entire directory, the script accepts the-h parameter to add the appropriate units4 #function like du on par5 6 ImportOs,sys7  fromOptparseImportOptionparser8 9 Ten defoption (): OneParser =Optionparser () AParser.add_option ('- H','--human', dest='Human', action='store_true', default=false,help='print sizes in human readable format') -Option,args =Parser.parse_args () -         returnOption,args the  - defFindFile (dirpath): -Path =Os.walk (Dirpath) -      forRoots,dirs,filesinchPath: +          forFileinchFiles: -                 yieldOs.path.join (roots,file) +  A  at deffilesize (option,file): -Size =os.path.getsize (file) -         if  notoption: -             returnStr (size) -         Else: -             ifSize >= 1024000000: in                 returnSTR (size/1024/1024/1024) +'G' -             elifSize >= 1024000: to                 returnSTR (size/1024/1024) +'M' +             elifSize >= 4096: -                 returnSTR (size/1024) +'K' the             Else: *                 return '4.0K' $ Panax Notoginseng  - defMain (): theOptions,args =option () +         Try: APath =Args[0] the         exceptIndexerror as E: +Sys.exit ('%s need a directory'%__file__) -          forFileinchfindfile (path): $Size =filesize (options.human,file) $                 PrintSize,file -  -  the if __name__=='__main__': - Main ()Wuyi             

Writing a class du command python script