computes rate of mods to files in a directory and reports in files/hr

dir_rate.py

from __future__ import print_function
import os
import sys

DIR=sys.argv[1]

times = []

for fn in os.listdir(DIR):
    path = os.path.join(DIR, fn)
    stat = os.stat(path)
    times.append(stat.st_mtime)

files = len(times)
hrs = (max(times) - min(times)) / 60 / 60

print('{:.2f} files/hr'.format(files/hrs))