blob: 40111b6dc211e2aa82f89e7a42f747d823b8381a (
plain) (
tree)
|
|
# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com>
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
def human_readable(byte, seperator=' '):
"""
Convert a large number of bytes to an easily readable format.
>>> human_readable(54)
"54 B"
>>> human_readable(1500)
"1.46 K"
>>> human_readable(2 ** 20 * 1023)
"1023 M"
"""
if byte <= 0:
return '0'
if byte < 2**10:
return '%d%sB' % (byte, seperator)
if byte < 2**10 * 999:
return '%.3g%sK' % (byte / 2**10.0, seperator)
if byte < 2**20:
return '%.4g%sK' % (byte / 2**10.0, seperator)
if byte < 2**20 * 999:
return '%.3g%sM' % (byte / 2**20.0, seperator)
if byte < 2**30:
return '%.4g%sM' % (byte / 2**20.0, seperator)
if byte < 2**30 * 999:
return '%.3g%sG' % (byte / 2**30.0, seperator)
if byte < 2**40:
return '%.4g%sG' % (byte / 2**30.0, seperator)
if byte < 2**40 * 999:
return '%.3g%sT' % (byte / 2**40.0, seperator)
if byte < 2**50:
return '%.4g%sT' % (byte / 2**40.0, seperator)
if byte < 2**50 * 999:
return '%.3g%sP' % (byte / 2**50.0, seperator)
if byte < 2**60:
return '%.4g%sP' % (byte / 2**50.0, seperator)
return '>9000'
|