renaming file prefixes and filetypes

In python 2.7, how would I go about renaming any .bat files in my current directory to a file called 1.txt?

(ex) If these are the files in my directory: [test.txt, abc.exe, dkckx.bat, 123.vbs], how could I rena开发者_运维百科me the dkckx.bat to 1.txt?

thx in advance.

---

Check the python documentation for the rename function.

And may be glob will be helpful too.

---

os.path has everything you'd need for filename manipulation. glob can search for files:

import os, glob

i = 1

for f in glob.glob('*'):
  if os.path.splitext(os.path.split(f)[-1])[-1].lower() == '.bat':
    os.rename(f, '{0}.txt'.format(i)
    i += 1

No guarantees, but I think this above script should work.