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k3num

Convert number to human readable format in a string.

    0.1.6

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k3num

Build Status Python package Documentation Status Package

Convert number to human readable format in a string.

k3num is a component of pykit3 project: a python3 toolkit set.

k3num convert numbers(or numbers in dict or list) to human readable format in string::

>>> readable(103425)
'101.0K'
>>> readable({ 'total': 10240, 'progress': [1, 1024*2.1, 1024*3.2], })
{'total': '10K', 'progress': ['1', '2.10K', '3.20K']}
>>> parsenum('5.2K')
5324.8
>>> parsenum('10%')
0.1

Attributes: value_to_unit(dict): map of int to unit, e.g.: 1024 -> "K", 1024² -> "M".

    Usage::

        >>> value_to_unit[1024**2]
        'M'

        >>> unit_to_value['K']
        1024

unit_to_value(dict): reverse map of `value_to_unit`.

k3num.Hex provides hex integer with arithmatic support.

Different ways to create a 4-byte crc32 hex str::

>>> Hex(0x0102, 4)
'00000102'
>>> Hex(0x0102, 'crc32')
'00000102'
>>> Hex.crc32(0x0102)
'00000102'
>>> Hex('00000102', 'crc32')
'00000102'
>>> Hex.crc32('00000102')
'00000102'

Create with a tuple of prefix and a filling byte::

>>> Hex(('12', 1), 'crc32')
'12010101'

Arithmetic operations::

>>> Hex(0x0102, 'crc32') + 1
'00000103'
>>> Hex(0x0102, 'crc32') * 2
'00000204'
>>> Hex(0x0102, 'crc32') - 1000000
'00000000'
>>> Hex(0x0102, 'crc32') * 1000000000
'ffffffff'

Iterate over sha1 space with a specific step::

>>> Hex.sha1(0) + Hex.sha1(('10', 0))
'1000000000000000000000000000000000000000'
>>> Hex.sha1(0) + Hex.sha1(('10', 0)) * 2
'2000000000000000000000000000000000000000'

Install

pip install k3num

Synopsis

>>> readable(103425)
'101.0K'
>>> readable({ 'total': 10240, 'progress': [1, 1024*2.1, 1024*3.2], })
{'total': '10K', 'progress': ['1', '2.10K', '3.20K']}
>>> parsenum('5.2K')
5324.8
>>> parsenum('10%')
0.1
>>> value_to_unit[1024**2]
'M'
>>> unit_to_value['K']
1024
>>> Hex(0x0102, 4)
'00000102'
>>> Hex(0x0102, 'crc32')
'00000102'
>>> Hex.crc32(0x0102)
'00000102'
>>> Hex('00000102', 'crc32')
'00000102'
>>> Hex.crc32('00000102')
'00000102'
>>> Hex(('12', 1), 'crc32')
'12010101'
>>> Hex(0x0102, 'crc32') + 1
'00000103'
>>> Hex(0x0102, 'crc32') * 2
'00000204'
>>> Hex(0x0102, 'crc32') - 1000000
'00000000'
>>> Hex(0x0102, 'crc32') * 1000000000
'ffffffff'
>>> Hex.sha1(0) + Hex.sha1(('10', 0))
'1000000000000000000000000000000000000000'
>>> Hex.sha1(0) + Hex.sha1(('10', 0)) * 2
'2000000000000000000000000000000000000000'

Author

Zhang Yanpo (张炎泼) drdr.xp@gmail.com

The MIT License (MIT)

Copyright (c) 2015 Zhang Yanpo (张炎泼) drdr.xp@gmail.com

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