Exibindo os maiores arquivos usando python

Neste link você encontra um pequeno artigo sobre um script python que exibe uma listagem dos arquivos por tamanho.

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	#!/usr/bin/env python
	# bigfiles.py - Generate a list of the largest files within a subdir
	# Copyright (C) 2007 Dan Noe / isomerica.net
	#
	# This program is free software; you can redistribute it and/or
	# modify it under the terms of the GNU General Public License
	# as published by the Free Software Foundation; either version 2
	# of the License, or (at your option) any later version.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program; if not, write to the Free Software
	# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	# Please feel free to email me if you have any problems, or if you
	# make improvements to this script. Thanks!
	#
	# 2007/04/26 - dpn@isomerica.net: Initial Version
	#
	#
	import sys, os, os.path, getopt, time
	from stat import *
	def main():
	"""
	bigfiles.py -- Generate a list of the largest files within a subdir.
	Copyright (C) 2007 Dan Noe / isomerica.net
	Usage: bigfiles.py [-vh -n <count>] /home/username/path
	Bigfiles recursively searches the directory your specify, determining
	the size of each file. When it is done, it prints a list of files in
	descending size order, with human readable sizes.
	Options:
	-h Display this help.
	-v Print some statistics about program run.
	-n <count> Display <count> results
	Any access errors (such as dangling symlinks) are ignored.
	"""
	try:
	options, remaining = getopt.getopt(sys.argv[1:], "hvn:")
	except:
	print main.__doc__
	sys.exit(1)
	items = 10
	verbose = False
	for field, value in options:
	if field == "-h":
	print main.__doc__
	sys.exit(1)
	if field == "-v":
	verbose = True
	if field == "-n":
	items = int(value)
	if len(remaining) == 0:
	print main.__doc__
	sys.exit(1)
	else:
	path = remaining[0]
	files = []
	if verbose:
	sys.stdout.write("Processing ... ")
	sys.stdout.flush()
	t = time.time()
	os.path.walk(path, visitor, files)
	if verbose:
	elapsed = time.time() - t
	print "Called stat() on %d files in %f seconds" % (len(files), elapsed)
	sys.stdout.write("Sorting ... ")
	sys.stdout.flush()
	t = time.time()
	files.sort(reverse=True)
	if verbose:
	elapsed = time.time() - t
	print "Sorted in %f seconds\n" % elapsed
	for result in files[:items]:
	print " ".join((humanize(result[0]), result[1]))
	def visitor(files, dirname, filenames):
	"""Visit function called by os.path.walk()."""
	paths = [os.path.join(dirname, filename) for filename in filenames]
	for path in paths:
	try:
	stat = os.stat(path)
	size = stat[ST_SIZE]
	files.append((size, path))
	except OSError:
	pass
	def humanize(bytes):
	"""Turns a byte count into a human readable string."""
	if bytes > 1099511627776:
	value = bytes / 1099511627776.0
	units = "TB"
	elif bytes > 1073741824:
	value = bytes / 1073741824.0
	units = "GB"
	elif bytes > 1048576:
	value = bytes / 1048576.0
	units = "MB"
	elif bytes > 1024:
	value = bytes / 1024.0
	units = "kB"
	else:
	value = float(bytes)
	units = "bytes"
	return "%.2f %s" % (value, units)
	if __name__ == "__main__":
	main()

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