/usr/lib/python2.7/dist-packages/pyglet/compat.py is in python-pyglet 1.3.0-1.
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# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of pyglet nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------
'''Compatibility tools
Various tools for simultaneous Python 2.x and Python 3.x support
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id$'
import sys
import itertools
if sys.version_info[0] == 2:
if sys.version_info[1] < 6:
#Pure Python implementation from
#http://docs.python.org/library/itertools.html#itertools.izip_longest
def izip_longest(*args, **kwds):
# izip_longest('ABCD', 'xy', fillvalue='-') --> Ax By C- D-
fillvalue = kwds.get('fillvalue')
def sentinel(counter = ([fillvalue]*(len(args)-1)).pop):
yield counter() # yields the fillvalue, or raises IndexError
fillers = itertools.repeat(fillvalue)
iters = [itertools.chain(it, sentinel(), fillers) for it in args]
try:
for tup in itertools.izip(*iters):
yield tup
except IndexError:
pass
else:
izip_longest = itertools.izip_longest
else:
izip_longest = itertools.zip_longest
if sys.version_info[0] >= 3:
import io
def asbytes(s):
if isinstance(s, bytes):
return s
elif isinstance(s, str):
return bytes(ord(c) for c in s)
else:
return bytes(s)
def asbytes_filename(s):
if isinstance(s, bytes):
return s
elif isinstance(s, str):
return s.encode(encoding=sys.getfilesystemencoding())
def asstr(s):
if s is None:
return ''
if isinstance(s, str):
return s
return s.decode("utf-8")
bytes_type = bytes
BytesIO = io.BytesIO
else:
import StringIO
asbytes = str
asbytes_filename = str
asstr = str
bytes_type = str
BytesIO = StringIO.StringIO
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