Find the most recently modified file in the current directory.

most_recently_modified.py

#! /usr/bin/env python

import os
import time

times = []
for tup in os.walk('.'):
    for f in tup[2]:
        if f.strip() == '.DS_Store':
            continue
        path = os.path.join(tup[0], f)
        s = os.stat(path)
        times.append((path, s.st_mtime))

result = max(times, key=lambda x: x[1])

print result[0]
print time.ctime(result[1])