On Tue, Aug 12, 2008 at 7:31 PM, Rob Weir <[EMAIL PROTECTED]> wrote:
> On 13 Aug 2008, rkmr wrote:
> > is there any library / function that prints number of bytes in human
> > readable format?
> > for example
> >
> > a=XX(1048576)
> > print a
> >
> > should output
> > 1 MB
>
> http://mail.python.org/pipermail/python-list/1999-December/018519.html
> is a good start - just need to change the table to something like::
hi rob,
thanks a lot!
this is what i came up with
_abbrevs = [
(1<<50L, ' PB'),
(1<<40L, ' TB'),
(1<<30L, ' GB'),
(1<<20L, ' MB'),
(1<<10L, ' kB'),
(1, ' bytes')
]
def bytestr(size, precision=1):
"""Return a string representing the greek/metric suffix of a size"""
if size==1:
return '1 byte'
for factor, suffix in _abbrevs:
if size >= factor:
break
float_string_split = `size/float(factor)`.split('.')
integer_part = float_string_split[0]
decimal_part = float_string_split[1]
if int(decimal_part[0:precision]):
float_string = '.'.join([integer_part, decimal_part[0:precision]])
else:
float_string = integer_part
return float_string + suffix
>>> bytestr(1)
'1 byte'
>>> bytestr(1024)
'1 kB'
>>> bytestr(1024*123)
'123 kB'
>>> bytestr(1024*12342)
'12 MB'
>>> bytestr(1024*12342,2)
'12.05 MB'
>>> bytestr(1024*1234,2)
'1.20 MB'
>>> bytestr(1024*1234*1111,2)
'1.30 GB'
>>> bytestr(1024*1234*1111,1)
'1.3 GB'
>>>
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