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delete now unused hurry.filesize (I forgot it in the previous commit)
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# this is a namespace package
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try:
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import pkg_resources
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pkg_resources.declare_namespace(__name__)
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except ImportError:
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import pkgutil
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__path__ = pkgutil.extend_path(__path__, __name__)
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hurry.filesize
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==============
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hurry.filesize a simple Python library that can take a number of bytes and
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returns a human-readable string with the size in it, in kilobytes (K),
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megabytes (M), etc.
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The default system it uses is "traditional", where multipliers of 1024
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increase the unit size::
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>>> from hurry.filesize import size
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>>> size(1024)
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'1K'
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An alternative, slightly more verbose system::
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>>> from hurry.filesize import alternative
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>>> size(1, system=alternative)
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'1 byte'
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>>> size(10, system=alternative)
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'10 bytes'
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>>> size(1024, system=alternative)
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'1 KB'
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A verbose system::
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>>> from hurry.filesize import verbose
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>>> size(10, system=verbose)
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'10 bytes'
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>>> size(1024, system=verbose)
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'1 kilobyte'
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>>> size(2000, system=verbose)
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'1 kilobyte'
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>>> size(3000, system=verbose)
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'2 kilobytes'
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>>> size(1024 * 1024, system=verbose)
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'1 megabyte'
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>>> size(1024 * 1024 * 3, system=verbose)
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'3 megabytes'
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You can also use the SI system, where multipliers of 1000 increase the unit
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size::
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>>> from hurry.filesize import si
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>>> size(1000, system=si)
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'1K'
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from hurry.filesize.filesize import size
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from hurry.filesize.filesize import traditional, alternative, verbose, iec, si
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traditional = [
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(1024 ** 5, 'P'),
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(1024 ** 4, 'T'),
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(1024 ** 3, 'G'),
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(1024 ** 2, 'M'),
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(1024 ** 1, 'K'),
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(1024 ** 0, 'B'),
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]
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alternative = [
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(1024 ** 5, ' PB'),
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(1024 ** 4, ' TB'),
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(1024 ** 3, ' GB'),
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(1024 ** 2, ' MB'),
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(1024 ** 1, ' KB'),
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(1024 ** 0, (' byte', ' bytes')),
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]
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verbose = [
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(1024 ** 5, (' petabyte', ' petabytes')),
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(1024 ** 4, (' terabyte', ' terabytes')),
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(1024 ** 3, (' gigabyte', ' gigabytes')),
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(1024 ** 2, (' megabyte', ' megabytes')),
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(1024 ** 1, (' kilobyte', ' kilobytes')),
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(1024 ** 0, (' byte', ' bytes')),
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]
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iec = [
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(1024 ** 5, 'Pi'),
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(1024 ** 4, 'Ti'),
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(1024 ** 3, 'Gi'),
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(1024 ** 2, 'Mi'),
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(1024 ** 1, 'Ki'),
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(1024 ** 0, ''),
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]
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si = [
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(1000 ** 5, 'P'),
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(1000 ** 4, 'T'),
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(1000 ** 3, 'G'),
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(1000 ** 2, 'M'),
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(1000 ** 1, 'K'),
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(1000 ** 0, 'B'),
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]
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def size(bytes, system=traditional):
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"""Human-readable file size.
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Using the traditional system, where a factor of 1024 is used::
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>>> size(10)
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'10B'
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>>> size(100)
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'100B'
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>>> size(1000)
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'1000B'
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>>> size(2000)
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'1K'
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>>> size(10000)
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'9K'
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>>> size(20000)
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'19K'
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>>> size(100000)
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'97K'
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>>> size(200000)
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'195K'
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>>> size(1000000)
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'976K'
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>>> size(2000000)
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'1M'
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Using the SI system, with a factor 1000::
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>>> size(10, system=si)
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'10B'
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>>> size(100, system=si)
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'100B'
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>>> size(1000, system=si)
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'1K'
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>>> size(2000, system=si)
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'2K'
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>>> size(10000, system=si)
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'10K'
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>>> size(20000, system=si)
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'20K'
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>>> size(100000, system=si)
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'100K'
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>>> size(200000, system=si)
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'200K'
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>>> size(1000000, system=si)
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'1M'
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>>> size(2000000, system=si)
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'2M'
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"""
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for factor, suffix in system:
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if bytes >= factor:
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break
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amount = int(bytes/factor)
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if isinstance(suffix, tuple):
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singular, multiple = suffix
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if amount == 1:
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suffix = singular
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else:
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suffix = multiple
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return str(amount) + suffix
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import unittest, doctest
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def test_suite():
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return unittest.TestSuite((
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doctest.DocFileSuite('README.txt'),
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doctest.DocTestSuite('hurry.filesize.filesize'),
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))
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