httpie-cli/httpie/utils.py

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2013-03-24 15:23:18 +01:00
from __future__ import division
def humanize_bytes(n, precision=2):
2013-04-10 16:48:18 +02:00
# Author: Doug Latornell
# Licence: MIT
# URL: http://code.activestate.com/recipes/577081/
"""Return a humanized string representation of a number of bytes.
Assumes `from __future__ import division`.
>>> humanize_bytes(1)
'1 byte'
>>> humanize_bytes(1024)
'1.0 kB'
>>> humanize_bytes(1024 * 123)
'123.0 kB'
>>> humanize_bytes(1024 * 12342)
'12.1 MB'
>>> humanize_bytes(1024 * 12342, 2)
'12.05 MB'
>>> humanize_bytes(1024 * 1234, 2)
'1.21 MB'
>>> humanize_bytes(1024 * 1234 * 1111, 2)
'1.31 GB'
>>> humanize_bytes(1024 * 1234 * 1111, 1)
'1.3 GB'
"""
abbrevs = [
(1 << 50, 'PB'),
(1 << 40, 'TB'),
(1 << 30, 'GB'),
(1 << 20, 'MB'),
(1 << 10, 'kB'),
(1, 'bytes')
]
if n == 1:
return '1 byte'
for factor, suffix in abbrevs:
if n >= factor:
break
return '%.*f %s' % (precision, n / factor, suffix)