/usr/lib/python3/dist-packages/eyed3/compat.py is in python3-eyed3 0.8.4-2.
This file is owned by root:root, with mode 0o644.
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################################################################################
# Copyright (C) 2013 Travis Shirk <travis@pobox.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
################################################################################
'''
Compatibility for various versions of Python (e.g. 2.6, 2.7, and 3.3)
'''
import os
import sys
import types
PY2 = sys.version_info[0] == 2
if PY2:
# Python2
StringTypes = types.StringTypes
UnicodeType = unicode # noqa
BytesType = str
unicode = unicode # noqa
_og_chr = chr
from ConfigParser import SafeConfigParser as ConfigParser
from ConfigParser import Error as ConfigParserError
from StringIO import StringIO
def chr(i):
'''byte strings units are single byte strings'''
return _og_chr(i)
input = raw_input # noqa
cmp = cmp # noqa
else:
# Python3
StringTypes = (str,)
UnicodeType = str
BytesType = bytes
unicode = str
from configparser import ConfigParser # noqa
from configparser import Error as ConfigParserError # noqa
from io import StringIO # noqa
def chr(i):
'''byte strings units are ints'''
return intToByteString(i)
input = input
def cmp(a, b):
return (a > b) - (a < b)
if sys.version_info[0:2] < (3, 4):
# py3.4 has two maps, nice nicer. Make it so for other versions.
import logging
logging._nameToLevel = {_k: _v
for _k, _v in logging._levelNames.items()
if isinstance(_k, str)}
def b(x, encoder=None):
if isinstance(x, BytesType):
return x
else:
import codecs
encoder = encoder or codecs.latin_1_encode
return encoder(x)[0]
def intToByteString(n):
'''Convert the integer ``n`` to a single character byte string.'''
if PY2:
return chr(n)
else:
return bytes((n,))
def byteiter(bites):
assert(isinstance(bites, BytesType))
for b in bites:
yield b if PY2 else intToByteString(b)
def byteOrd(bite):
'''The utility handles the following difference with byte strings in
Python 2 and 3:
b"123"[1] == b"2" (Python2)
b"123"[1] == 50 (Python3)
As this function name implies, the oridinal value is returned given either
a byte string of length 1 (python2) or a integer value (python3). With
Python3 the value is simply return.
'''
if PY2:
assert(isinstance(bite, BytesType))
return ord(bite)
else:
assert(isinstance(bite, int))
return bite
def importmod(mod_file):
'''Imports a Ptyhon module referenced by absolute or relative path
``mod_file``. The module is retured.'''
mod_name = os.path.splitext(os.path.basename(mod_file))[0]
if PY2:
import imp
mod = imp.load_source(mod_name, mod_file)
else:
import importlib.machinery
loader = importlib.machinery.SourceFileLoader(mod_name, mod_file)
mod = loader.load_module()
return mod
class UnicodeMixin(object):
'''A shim to handlke __unicode__ missing from Python3.
Inspired by: http://lucumr.pocoo.org/2011/1/22/forwards-compatible-python/
'''
if PY2:
def __str__(self):
return unicode(self).encode('utf-8')
else:
def __str__(self):
return self.__unicode__()
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