O script a seguir imprime o tamanho do diretório de todos os subdiretórios do diretório especificado. Ele também tenta se beneficiar (se possível) do armazenamento em cache das chamadas de funções recursivas. Se um argumento for omitido, o script funcionará no diretório atual. A saída é classificada pelo tamanho do diretório, do maior para o menor. Para que você possa adaptá-lo às suas necessidades.
PS: usei a receita 578019 para mostrar o tamanho do diretório em formato compatível com humanos ( http://code.activestate.com/recipes/578019/ )
from __future__ import print_function
import os
import sys
import operator
def null_decorator(ob):
return ob
if sys.version_info >= (3,2,0):
import functools
my_cache_decorator = functools.lru_cache(maxsize=4096)
else:
my_cache_decorator = null_decorator
start_dir = os.path.normpath(os.path.abspath(sys.argv[1])) if len(sys.argv) > 1 else '.'
@my_cache_decorator
def get_dir_size(start_path = '.'):
total_size = 0
if 'scandir' in dir(os):
# using fast 'os.scandir' method (new in version 3.5)
for entry in os.scandir(start_path):
if entry.is_dir(follow_symlinks = False):
total_size += get_dir_size(entry.path)
elif entry.is_file(follow_symlinks = False):
total_size += entry.stat().st_size
else:
# using slow, but compatible 'os.listdir' method
for entry in os.listdir(start_path):
full_path = os.path.abspath(os.path.join(start_path, entry))
if os.path.isdir(full_path):
total_size += get_dir_size(full_path)
elif os.path.isfile(full_path):
total_size += os.path.getsize(full_path)
return total_size
def get_dir_size_walk(start_path = '.'):
total_size = 0
for dirpath, dirnames, filenames in os.walk(start_path):
for f in filenames:
fp = os.path.join(dirpath, f)
total_size += os.path.getsize(fp)
return total_size
def bytes2human(n, format='%(value).0f%(symbol)s', symbols='customary'):
"""
(c) http://code.activestate.com/recipes/578019/
Convert n bytes into a human readable string based on format.
symbols can be either "customary", "customary_ext", "iec" or "iec_ext",
see: http://goo.gl/kTQMs
>>> bytes2human(0)
'0.0 B'
>>> bytes2human(0.9)
'0.0 B'
>>> bytes2human(1)
'1.0 B'
>>> bytes2human(1.9)
'1.0 B'
>>> bytes2human(1024)
'1.0 K'
>>> bytes2human(1048576)
'1.0 M'
>>> bytes2human(1099511627776127398123789121)
'909.5 Y'
>>> bytes2human(9856, symbols="customary")
'9.6 K'
>>> bytes2human(9856, symbols="customary_ext")
'9.6 kilo'
>>> bytes2human(9856, symbols="iec")
'9.6 Ki'
>>> bytes2human(9856, symbols="iec_ext")
'9.6 kibi'
>>> bytes2human(10000, "%(value).1f %(symbol)s/sec")
'9.8 K/sec'
>>> # precision can be adjusted by playing with %f operator
>>> bytes2human(10000, format="%(value).5f %(symbol)s")
'9.76562 K'
"""
SYMBOLS = {
'customary' : ('B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y'),
'customary_ext' : ('byte', 'kilo', 'mega', 'giga', 'tera', 'peta', 'exa',
'zetta', 'iotta'),
'iec' : ('Bi', 'Ki', 'Mi', 'Gi', 'Ti', 'Pi', 'Ei', 'Zi', 'Yi'),
'iec_ext' : ('byte', 'kibi', 'mebi', 'gibi', 'tebi', 'pebi', 'exbi',
'zebi', 'yobi'),
}
n = int(n)
if n < 0:
raise ValueError("n < 0")
symbols = SYMBOLS[symbols]
prefix = {}
for i, s in enumerate(symbols[1:]):
prefix[s] = 1 << (i+1)*10
for symbol in reversed(symbols[1:]):
if n >= prefix[symbol]:
value = float(n) / prefix[symbol]
return format % locals()
return format % dict(symbol=symbols[0], value=n)
############################################################
###
### main ()
###
############################################################
if __name__ == '__main__':
dir_tree = {}
### version, that uses 'slow' [os.walk method]
#get_size = get_dir_size_walk
### this recursive version can benefit from caching the function calls (functools.lru_cache)
get_size = get_dir_size
for root, dirs, files in os.walk(start_dir):
for d in dirs:
dir_path = os.path.join(root, d)
if os.path.isdir(dir_path):
dir_tree[dir_path] = get_size(dir_path)
for d, size in sorted(dir_tree.items(), key=operator.itemgetter(1), reverse=True):
print('%s\t%s' %(bytes2human(size, format='%(value).2f%(symbol)s'), d))
print('-' * 80)
if sys.version_info >= (3,2,0):
print(get_dir_size.cache_info())
Saída de amostra:
37.61M .\subdir_b
2.18M .\subdir_a
2.17M .\subdir_a\subdir_a_2
4.41K .\subdir_a\subdir_a_1
----------------------------------------------------------
CacheInfo(hits=2, misses=4, maxsize=4096, currsize=4)
EDIT: moveu null_decorator acima, como user2233949 recomendado