Python编程实现两个文件夹里文件的对比功能示例【包含内容的对比】

Python  /  管理员 发布于 7年前   309

本文实例讲述了Python编程实现两个文件夹里文件的对比功能。分享给大家供大家参考，具体如下：

#-*-coding:utf-8-*-#===============================================================================# 目录对比工具(包含子目录 )，并列出# 1、A比B多了哪些文件# 2、B比A多了哪些文件# 3、二者相同的文件:文件大小相同 VS 文件大小不同 (Size相同文件不打印:与Size不同文件显示未排序)#===============================================================================import os, time,difflibAFILES = [] #EEBFILES = [] #SVNCOMMON = [] #EE & SVNdef getPrettyTime(state):  return time.strftime('%y-%m-%d %H:%M:%S', time.localtime(state.st_mtime))# def getpathsize(dir): #获取文件大小的函数,未用上,仅供学习.故注释掉#   size=0#   for root, dirs, files in os.walk(dir):#   #root:目录:str 如: C:\CopySVN\SystemObject\TopoProcedure\Built-in\#   #dirs:目录名称:列表: 如 ['Parsers']#   #files:名称:列表: 如 ['011D0961FB42416AA49D5E82945DE7E9.og',...]#   #file:目录:str, 如 011D0961FB42416AA49D5E82945DE7E9.og#     for file in files:#       path = os.path.join(root,file)#       size = os.path.getsize(path)#   return sizedef dirCompare(apath,bpath):  afiles = []  bfiles = []  for root, dirs , files in os.walk(apath):    for f in files:      afiles.append(root + "\\" + f)  for root, dirs , files in os.walk(bpath):    for f in files:      bfiles.append(root + "\\" + f)      #sizeB = os.path.getsize(root + "\\" + f) 此处定义的size无法在commonfiles进行比较. (A,B在各自的循环里面)  # 去掉afiles中文件名的apath (拿A,B相同的路径\文件名,做成集合,去找交集)  apathlen = len(apath)  aafiles = []  for f in afiles:    aafiles.append(f[apathlen:])  # 去掉bfiles中文件名的bpath  bpathlen = len(bpath)  bbfiles = []  for f in bfiles:    bbfiles.append(f[bpathlen:])  afiles = aafiles  bfiles = bbfiles  setA = set(afiles)  setB = set(bfiles)  #print('%$%'+str(len(setA)))  #print('%%'+str(len(setB)))  commonfiles = setA & setB # 处理共有文件  #print ("===============File with different size in '", apath, "' and '", bpath, "'===============")  #将结果输出到本地  #with open(os.getcwd()+'diff.txt','w') as di:    #di.write("===============File with different size in '", apath, "' and '", bpath, "'===============")  for f in sorted(commonfiles):    sA=os.path.getsize(apath + "\\" + f)    sB=os.path.getsize(bpath + "\\" + f)    if sA==sB: #共有文件的大小比较      #pass #print (f + "\t\t" + getPrettyTime(os.stat(apath + "\\" + f)) + "\t\t" + getPrettyTime(os.stat(bpath + "\\" + f)))      #以下代码是处理大小一致，但是内容可能不一致的情况      #print("in sa=sb")      #print(os.getcwd())      saf=[]      sbf=[]      sAfile=open(apath + "\\" + f)      iter_f=iter(sAfile)      for line in iter_f:        saf.append(line)      sAfile.close()      sBfile=open(bpath + "\\" + f)      iter_fb=iter(sBfile)      for line in iter_fb:        sbf.append(line)      sBfile.close()      saf1=sorted(saf)      sbf1=sorted(sbf)      if(len(saf1)!=len(sbf1)):        with open(os.getcwd()+'\\comment_diff.txt','a') as fp:          print(os.getcwd())          fp.write(apath + "\\" + f+" lines size not equal "+bpath + "\\" + f+'\n')      else:        for i in range(len(saf1)):          #print("into pre")          if(saf1[i]!=sbf1[i]):print('into commont')with open(os.getcwd()+'\\comment_diff.txt','a') as fp1:  fp1.write(apath + "\\" + f+" content not equal "+bpath + "\\" + f+'\n')  break    else:      with open (os.getcwd()+'\\diff.txt','a') as di:        di.write("File Name=%s  EEresource file size:%d  != SVN file size:%d" %(f,sA,sB)+'\n')      #print ("File Name=%s  EEresource file size:%d  != SVN file size:%d" %(f,sA,sB))  # 处理仅出现在一个目录中的文件  onlyFiles = setA ^ setB  aonlyFiles = []  bonlyFiles = []  for of in onlyFiles:    if of in afiles:      aonlyFiles.append(of)    elif of in bfiles:      bonlyFiles.append(of)  #print ("###################### EE resource ONLY ###########################")  #print ("#only files in ", apath)  for of in sorted(aonlyFiles):    with open (os.getcwd()+'\\EEonly.txt','a') as ee:      ee.write(of+'\n')    #print (of)  #print ("*"*20+"SVN ONLY+"+"*"*20)  #print ("#only files in ", bpath)  for of in sorted(bonlyFiles):    with open (os.getcwd()+'\\svnonly.txt','a') as svn:      svn.write(of+'\n')    #print (of)if __name__ == '__main__':  FolderEE = 'D:\\search\\bb\\ObjectGroup - Copy\\ObjectGroup\\Built-in'  FolderSVN = 'D:\\search\\bb\\ObjectGroup\\ObjectGroup\\Built-in'  dirCompare(FolderEE, FolderSVN)  print("done!")

PS：这里再为大家推荐一款功能相似的在线工具供大家参考使用：

在线文本比较工具：
http://tools..net.cn/aideddesign/txt_diff

更多关于Python相关内容感兴趣的读者可查看本站专题：《Python文件与目录操作技巧汇总》、《Python文本文件操作技巧汇总》、《Python数据结构与算法教程》、《Python函数使用技巧总结》、《Python字符串操作技巧汇总》及《Python入门与进阶经典教程》

希望本文所述对大家Python程序设计有所帮助。