Python HW 2번문제

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import os.path   import glob import sys if(len(sys.argv)!=2):     print("Usage : python <Script name> <Dir Name>")     sys.exit(1)   class Du:     def searchDir(self,dirName):         fileList = glob.glob(dirName)         size=0;         for fullFile in fileList:             if os.path.isdir(fullFile):                 size+=self.searchDir(fullFile+"/*")             else:                 s = os.path.getsize(fullFile)                 size+=s         print size/1024,dirName         return size       test = Du() test.searchDir(sys.argv[1]+"/*")