import os
path="C:/Users/kele/Desktop/testfloader"
targetpath="C:/Users/kele/Desktop/targetfloader"
def scan_files(directory,postfix=None):
  files_list=[]
  path=unicode(directory,'utf-8')
  for root, sub_dirs, files in os.walk(path):
    for special_file in files:
      if postfix:
        if special_file.endswith(postfix):
          cutmove(root,special_file)
      else:
        cutmove(root,special_file)
def cutmove(root,special_file):
  if os.path.isfile(targetpath+"/"+special_file):
    os.remove(targetpath+"/"+special_file)
  os.rename(root+"/"+special_file,targetpath+"/"+special_file)
def runmian():
  if not os.path.isdir(targetpath):
    os.mkdir(targetpath)
  scan_files(path,".mobi")
runmian()