#encoding=utf-8
#author: walker
#date: 2013-12-06
#function: 深度遍歷指定目錄，更換指定擴展名
import os
import os.path
#讀入指定目錄并轉(zhuǎn)換為絕對路徑
rootdir = raw_input('root dir:\n')
rootdir = os.path.abspath(rootdir)
print('absolute path:\n' + rootdir)
#讀入原擴展名并標(biāo)準化
old_ext = raw_input('old extension:\n')
old_ext = old_ext.strip()
if old_ext[0] != '.':
  old_ext = '.' + old_ext
#讀入新擴展名并標(biāo)準化
new_ext = raw_input('new extension:\n')
new_ext = new_ext.strip()
if new_ext[0] != '.':
  new_ext = '.' + new_ext
for parent, dirnames, filenames in os.walk(rootdir):
  for filename in filenames:
    pathfile = os.path.join(parent, filename)
    if pathfile.endswith(old_ext):
      new_pathfile = os.path.splitext(pathfile)[0] + new_ext
      print('=======================================================')
      print(pathfile)
      print('-------------------------------------------------------')
      print(new_pathfile)
      print('=======================================================')
      os.rename(pathfile, new_pathfile)

#將后綴.ini換成.txt
#路徑名可以是相對路徑或絕對路徑
find 路徑名 | rename 's/\.ini$/\.txt/'

# Use the built-in version of scandir/walk if possible, otherwise
# use the scandir module version
try:
  from os import scandir, walk  #python3.5+
except ImportError:
  from scandir import scandir, walk #python3.4-