Find most recently modified file in Python

most_recently_modfied.py

import os

max_mtime = 0
for dirname,subdirs,files in os.walk("."):
    for fname in files:
        full_path = os.path.join(dirname, fname)
        mtime = os.stat(full_path).st_mtime
        if mtime > max_mtime:
            max_mtime = mtime
            max_dir = dirname
            max_file = fname

print max_dir, max_file