Delete the newest of files with the same name except for different extensions.

delete_duplicates.py

import os, time
import os.path

for path, dirs, files in os.walk('./'):
	dups = {}
	for x in files:
		name, ext = os.path.splitext(x)
		fullpath = path+'/'+x
		(mode, ino, dev, nlink, uid, gid, size, atime, mtime, ctime) = os.stat(fullpath)
		if not name in dups:
			dups[name] = [(name, ext, time.ctime(mtime))]
		else:
			dups[name].append([name, ext, time.ctime(mtime)])
			dups[name] = sorted(dups[name], key=lambda x: x[2])
			delname, delext, deldate = dups[name][0]
			delpath = path+'/'+delname+delext
			os.remove(delpath)