Python source directory and backup directory diff check and synchronize

#!/usr/bin/env python# -*- coding: utf-8 -*-import osimport sysimport  Reimport filecmpimport shutilholderlist=[]def compareme (DIR1,DIR2):d Ircomp=filecmp.dircomp (dir1 , Dir2) Only_in_one=dircomp.left_onlydiff_in_one=dircomp.diff_filesdirpath=os.path.abspath (DIR1) [ Holderlist.append (Os.path.abspath (Os.path.join (dir1,x)))  for x in only_in_one][ Holderlist.append (Os.path.abspath (Os.path.join (dir1,x)))  for x in diff_in_one]if len ( Dircomp.common_dirs)  > 0:for item in dircomp.common_dirs:compareme (Os.path.abspath (Os.path.join (Dir1,item)), Os.path.abspath (Os.path.join (Dir2,item))) Return holderlistdef main (): If  len (SYS.ARGV)  > 2:dir1=sys.argv[1]dir2=sys.argv[2]else:print  "Please input parameters accurately, e.g.:python  Comp.py datadir backupdir "Sys.exit () source_files=compareme (DIR1,DIR2) Dir1=os.path.abspath (DIR1) if  not dir2.endswith ('/'):  dir2=dir2+ '/' Dir2=os.path.abspath (DIR2) Destination_files=[]createdir_bool=falsefor item in source_ Files: #destination_dir =re.sub (Dir1,dir2,item) destination_dir =item.replace (DIR1, DIR2) destination_ Files.append (destination_dir) If os.path.isdir (item): If not os.path.exists (destination_dir): o S.makedirs (Destination_dir) Createdir_bool=trueif createdir_bool:destination_files=[]source_files=[]source _files=compareme (DIR1,DIR2) For item in source_files:destination_dir = item.replace ( DIR1, DIR2) #destination_dir =re.sub (Dir1,dir2,item) destination_files.append (destination_dir) print  " What's NEW: "Print source_filescopy_pair=zip (source_files,destination_files) for item in copy_ Pair:if os.path.isfile (Item[0]): Shutil.copyfile (item[0],item[1]) if __name__ ==  ' __main__ ': The main () script code can be used directly

Python source directory and backup directory diff check and synchronize