1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
# vim:fileencoding=utf-8:noet
from __future__ import (unicode_literals, division, absolute_import, print_function)
from math import log
unit_list = tuple(zip(['', 'k', 'M', 'G', 'T', 'P'], [0, 0, 1, 2, 2, 2]))
def humanize_bytes(num, suffix='B', si_prefix=False):
'''Return a human friendly byte representation.
Modified version from http://stackoverflow.com/questions/1094841
'''
if num == 0:
return '0 ' + suffix
div = 1000 if si_prefix else 1024
exponent = min(int(log(num, div)) if num else 0, len(unit_list) - 1)
quotient = float(num) / div ** exponent
unit, decimals = unit_list[exponent]
if unit and not si_prefix:
unit = unit.upper() + 'i'
return ('{{quotient:.{decimals}f}} {{unit}}{{suffix}}'
.format(decimals=decimals)
.format(quotient=quotient, unit=unit, suffix=suffix))
|
