--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_utils/size.py	Thu Feb 19 00:46:48 2015 +0100
@@ -0,0 +1,59 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+
+# import interfaces
+
+# import packages
+from babel.core import Locale
+from babel.numbers import format_decimal
+from pyams_utils.request import check_request
+
+from pyams_utils import _
+
+
+def get_human_size(value, request=None):
+    """Convert given bytes value in human readable format
+
+    >>> from pyramid.testing import DummyRequest
+    >>> request = DummyRequest(params={'_LOCALE_': 'fr'})
+    >>> request.locale_name
+    'fr'
+
+    >>> from pyams_utils.size import get_human_size
+    >>> get_human_size(256, request)
+    '256 bytes'
+    >>> get_human_size(3678, request)
+    '3,6 Kb'
+    >>> get_human_size(6785342, request)
+    '6,47 Mb'
+    >>> get_human_size(3674815342, request)
+    '3,422 Gb'
+    """
+    if request is None:
+        request = check_request()
+    translate = request.localizer.translate
+    locale = Locale(request.locale_name)
+    if value < 1024:
+        return format_decimal(value, translate(_('0 bytes')), locale)
+    value /= 1024
+    if value < 1024:
+        return format_decimal(value, translate(_('0.# Kb')), locale)
+    value /= 1024
+    if value < 1024:
+        return format_decimal(value, translate(_('0.0# Mb')), locale)
+    value /= 1024
+    return format_decimal(value, translate(_('0.0## Gb')), locale)