import os
import time
copyFileCounts = 0
def copyFiles(sourceDir, targetDir):
 global copyFileCounts
 print (sourceDir)
 print (u"%s 当前处理文件夹%s已处理%s 个文件" %(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())), sourceDir,copyFileCounts))
 for f in os.listdir(sourceDir):
  sourceF = os.path.join(sourceDir, f)
  targetF = os.path.join(targetDir, f)
  if os.path.isfile(sourceF):
   #创建目录
   if not os.path.exists(targetDir):
    os.makedirs(targetDir)
   copyFileCounts += 1
   #文件不存在，或者存在但是大小不同，覆盖
   if not os.path.exists(targetF) or (os.path.exists(targetF) and (os.path.getsize(targetF) != os.path.getsize(sourceF))):
    #2进制文件
    open(targetF, "wb").write(open(sourceF, "rb").read())
    print (u"%s %s 复制完毕" %(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())), targetF))
   else:
    print (u"%s %s 已存在，不重复复制" %(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())), targetF))
  if os.path.isdir(sourceF):
   copyFiles(sourceF, targetF)
if __name__ == "__main__":
 copyFiles('/content/chest_xray/', '/content/drive/My Drive/chest_xray/')

import shutil
shutil.rmtree('D:/content/')