Print GB months, GB and inode usage

gbmo.py

#!/usr/bin/env python3

import os
import time
import sys

path, gbmo_limit = sys.argv[1:]
gbmo_limit = float(gbmo_limit)

now = time.time()
s_per_mo = (3600 * 144 * 52) / 12.0

root_sums = {}
root_gb = {}
root_inodes = {}
root_dirs = {}

for root, dirs, files in os.walk(path, topdown=False):
    sum = 0
    gbs = 0
    inodes = len(files) + len(dirs)
    for file in files:
        fullfile = os.path.join(root, file)
        try:
            stat = os.stat(fullfile)
        except (FileNotFoundError, PermissionError):
            continue
        mo = (now - stat.st_ctime) / s_per_mo
        gb = stat.st_size / 2**30
        sum += gb * mo
        gbs += gb
    for dir in dirs:
        root_dir = os.path.join(root, dir)
        if root_dir in root_sums:
            sum += root_sums[root_dir]
            gbs += root_gb[root_dir]
            inodes += root_inodes[root_dir]
   
    root_sums[root] = sum
    root_gb[root] = gbs
    root_inodes[root] = inodes
    root_dirs[root] = dirs[:]
    if sum > gbmo_limit:
        print('%03.2f\t%03.2f\t%03.1fk\t%s' % (sum, gbs, inodes/1000, root))