Simple File Rename script in Python

import os
indir = 'c:\\datafilepath\\'

for filename in os.listdir(indir):
	if filename.startswith("xyz_"):
		newname = filename.replace("xyz_","abc_")
		try: 
			os.rename(indir + filename, indir + newname)
			print "[NEW]", filename, "-->", newname
		
		except:
			print "[OLD]", filename, "-->", newname