Split up a bunch of files evenly into directories sized for a CD-R

bucket.py

#!/usr/bin/python -i

import os


MAX_SIZE = 635 * (1024 * 1024)


files = os.listdir(os.path.dirname(__file__))
sizes = map(lambda x: os.stat(x).st_size, files)
sizes_files = sorted(filter(lambda x: os.path.basename(__file__) != x[1] and
                            os.path.isfile(x[1]), zip(sizes, files)),
                     reverse=True)


buckets = [{}]

for (size, name) in sizes_files:
    added = False
    for bucket in buckets:
        if added:
            continue
        if size + sum(bucket) < MAX_SIZE:
            added = True
            bucket[size] = name
    if not added:
        buckets.append({size: name})


incr = 6
for bucket in buckets:
    dirname = 'dv-{}'.format(str(incr).zfill(2))
    os.mkdir(dirname)
    for (size, name) in bucket.items():
        os.link(name, os.path.join(dirname, name))
    incr += 1