Python读json文件，按条件过滤并移动文件

# -*- coding: UTF-8 -*-import codecsimport jsonimport osimport shutilimport stringimport sysmatchingRatio = sys.argv[1]os.mkdir(matchingRatio)for root,dirs,files in os.walk('D:\ok\json'):    for file in files:        #os.rename(file,newfile)data_temp = open('json/' + file, 'r').read()   #if data_temp[:3] == codecs.BOM_UTF8:   #datadata = data_temp[3:]#data1 = data_temp.decode("utf-8")   aaa = json.loads(data_temp)for aa in aaa:#print aa['ImagePath'][15:]if string.atof(aa['Similarity']) > string.atof(matchingRatio):shutil.copyfile(aa['ImagePath'][15:], matchingRatio + '/' + aa['VpPath'].replace('/','') + aa['ImagePath'][15:].replace('/','').replace(' ',''))