使用python比较两个文件夹的文件并更新

import os,shutil

import datetime

#将子文件夹里的文件全部移动出来，去除重复文件（文件名相同，大小相同则跳过）

#revised by Stephen Shen 

#2020-3-8 16:31:07

src='G:\_debug0229'

dst='D:\_debug0229'

 

# oldfile=os.path.getsize(r'G:\_debug0229\111.txt')

# newfile=os.path.getsize(r'd:\_debug0229\111.txt')

 

for folderName,subFolders,fileNames in os.walk(src):

    # print('The current foler is '+folderName)

 

    # for subfolder in subFoldst` s:

        # print('Subfolder of '+folderName+' :'+subfolder)

 

    for filename in fileNames:

        # print('File inside '+folderName+' :'+filename)

        

        srcpath=os.path.join(folderName,filename)

        relpath=os.path.relpath(folderName,src)

        dstpath=os.path.join(dst,relpath,filename)

 

        if os.path.exists(dstpath):

            srcsize=os.path.getsize(srcpath)

            dstsize=os.path.getsize(dstpath)

            if srcsize==dstsize:

                #文件名相同且大小相同

                # print('File inside '+folderName+' :'+filename+' is skipped')

                continue

            else:

                fdirname,fbasename=os.path.split(dstpath)

                #文件名相同但大小不同

                fname,fext=os.path.splitext(fbasename)

                nowtime=datetime.datetime.now()                

                strtime=str(nowtime.year)+str(nowtime.month)+str(nowtime.day)+str(nowtime.hour)+str(nowtime.minute)

                newfbasename=fname+'-'+strtime+fext

                dstpath=os.path.join(fdirname,newfbasename)

                print('File inside '+folderName+' :'+filename+' is renamed')

                shutil.copyfile(srcpath,dstpath)

 

        else:

            shutil.copyfile(srcpath,dstpath)

            print('File inside '+folderName+' :'+filename+' is copied')

        

print('done')