FM / oslo

/usr/lib/python2.6/site-packages/oslo_utils/

/usr/lib/python2.6/site-packages/oslo_utils

Name	Size	Mode	Actions
locale/	-	0755	rm
tests/	-	0755	rm
encodeutils.py	6309	0644	edit dl rm
encodeutils.pyc	3462	0644	edit dl rm
eventletutils.py	5266	0644	edit dl rm
eventletutils.pyc	3230	0644	edit dl rm
excutils.py	9407	0644	edit dl rm
excutils.pyc	8818	0644	edit dl rm
fileutils.py	2838	0644	edit dl rm
fileutils.pyc	2985	0644	edit dl rm
fixture.py	1556	0644	edit dl rm
fixture.pyc	1732	0644	edit dl rm
fnmatch.py	2600	0644	edit dl rm
fnmatch.pyc	2100	0644	edit dl rm
imageutils.py	6640	0644	edit dl rm
imageutils.pyc	4847	0644	edit dl rm
importutils.py	2359	0644	edit dl rm
importutils.pyc	2472	0644	edit dl rm
netutils.py	11478	0644	edit dl rm
netutils.pyc	11144	0644	edit dl rm
reflection.py	7015	0644	edit dl rm
reflection.pyc	6191	0644	edit dl rm
secretutils.py	1317	0644	edit dl rm
secretutils.pyc	998	0644	edit dl rm
strutils.py	9105	0644	edit dl rm
strutils.pyc	8068	0644	edit dl rm
timeutils.py	14739	0644	edit dl rm
timeutils.pyc	16914	0644	edit dl rm
units.py	922	0644	edit dl rm
units.pyc	593	0644	edit dl rm
uuidutils.py	1349	0644	edit dl rm
uuidutils.pyc	1265	0644	edit dl rm
versionutils.py	2619	0644	edit dl rm
versionutils.pyc	2924	0644	edit dl rm
_i18n.py	1158	0644	edit dl rm
_i18n.pyc	540	0644	edit dl rm
__init__.py	0	0644	edit dl rm
__init__.pyc	142	0644	edit dl rm

Edit: /usr/lib/python2.6/site-packages/oslo_utils/encodeutils.py (6309B)

# Copyright 2014 Red Hat, Inc.
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import sys

import six

def safe_decode(text, incoming=None, errors='strict'):
    """Decodes incoming text/bytes string using `incoming` if they're not
       already unicode.

:param incoming: Text's current encoding
    :param errors: Errors handling policy. See here for valid
        values http://docs.python.org/2/library/codecs.html
    :returns: text or a unicode `incoming` encoded
                representation of it.
    :raises TypeError: If text is not an instance of str
    """
    if not isinstance(text, (six.string_types, six.binary_type)):
        raise TypeError("%s can't be decoded" % type(text))

if isinstance(text, six.text_type):
        return text

if not incoming:
        incoming = (sys.stdin.encoding or
                    sys.getdefaultencoding())

try:
        return text.decode(incoming, errors)
    except UnicodeDecodeError:
        # Note(flaper87) If we get here, it means that
        # sys.stdin.encoding / sys.getdefaultencoding
        # didn't return a suitable encoding to decode
        # text. This happens mostly when global LANG
        # var is not set correctly and there's no
        # default encoding. In this case, most likely
        # python will use ASCII or ANSI encoders as
        # default encodings but they won't be capable
        # of decoding non-ASCII characters.
        #
        # Also, UTF-8 is being used since it's an ASCII
        # extension.
        return text.decode('utf-8', errors)

def safe_encode(text, incoming=None,
                encoding='utf-8', errors='strict'):
    """Encodes incoming text/bytes string using `encoding`.

If incoming is not specified, text is expected to be encoded with
    current python's default encoding. (`sys.getdefaultencoding`)

:param incoming: Text's current encoding
    :param encoding: Expected encoding for text (Default UTF-8)
    :param errors: Errors handling policy. See here for valid
        values http://docs.python.org/2/library/codecs.html
    :returns: text or a bytestring `encoding` encoded
                representation of it.
    :raises TypeError: If text is not an instance of str
    """
    if not isinstance(text, (six.string_types, six.binary_type)):
        raise TypeError("%s can't be encoded" % type(text))

if not incoming:
        incoming = (sys.stdin.encoding or
                    sys.getdefaultencoding())

# Avoid case issues in comparisons
    if hasattr(incoming, 'lower'):
        incoming = incoming.lower()
    if hasattr(encoding, 'lower'):
        encoding = encoding.lower()

if isinstance(text, six.text_type):
        return text.encode(encoding, errors)
    elif text and encoding != incoming:
        # Decode text before encoding it with `encoding`
        text = safe_decode(text, incoming, errors)
        return text.encode(encoding, errors)
    else:
        return text

def exception_to_unicode(exc):
    """Get the message of an exception as a Unicode string.

On Python 3, the exception message is always a Unicode string. On
    Python 2, the exception message is a bytes string *most* of the time.

If the exception message is a bytes strings, try to decode it from UTF-8
    (superset of ASCII), from the locale encoding, or fallback to decoding it
    from ISO-8859-1 (which never fails).
    """
    msg = None
    if six.PY2:
        # First try by calling the unicode type constructor. We should try
        # unicode() before exc.__unicode__() because subclasses of unicode can
        # be easily casted to unicode, whereas they have no __unicode__()
        # method.
        try:
            msg = unicode(exc)
        except UnicodeError:
            # unicode(exc) fail with UnicodeDecodeError on Python 2 if
            # exc.__unicode__() or exc.__str__() returns a bytes string not
            # decodable from the default encoding (ASCII)
            if hasattr(exc, '__unicode__'):
                # Call directly the __unicode__() method to avoid
                # the implicit decoding from the default encoding
                try:
                    msg = exc.__unicode__()
                except UnicodeError:
                    pass

if msg is None:
        # Don't call directly str(exc), because it fails with
        # UnicodeEncodeError on Python 2 if exc.__str__() returns a Unicode
        # string not encodable to the default encoding (ASCII)
        msg = exc.__str__()

if isinstance(msg, six.text_type):
        # This should be the default path on Python 3 and an *optional* path
        # on Python 2 (if for some reason the exception message was already
        # in unicode instead of the more typical bytes string); so avoid
        # further converting to unicode in both of these cases.
        return msg

try:
        # Try to decode from UTF-8 (superset of ASCII). The decoder fails
        # if the string is not a valid UTF-8 string: the UTF-8 codec includes
        # a validation algorithm to ensure the consistency of the codec.
        return msg.decode('utf-8')
    except UnicodeDecodeError:
        pass

# Try the locale encoding, most error messages are encoded to this encoding
    # (ex: os.strerror(errno))
    encoding = sys.getfilesystemencoding()
    try:
        return msg.decode(encoding)
    except UnicodeDecodeError:
        pass

# The encoding is not ASCII, not UTF-8, nor the locale encoding. Fallback
    # to the ISO-8859-1 encoding which never fails. It will produce mojibake
    # if the message is not encoded to ISO-8859-1, but we don't want a super
    # complex heuristic to get the encoding of an exception message.
    return msg.decode('latin1')

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