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Dosya Düzenle: compat.py

#-----------------------------------------------------------------------------
#   Copyright (c) 2008 by David P. D. Moss. All rights reserved.
#
#   Released under the BSD license. See the LICENSE file for details.
#-----------------------------------------------------------------------------
"""
Compatibility wrappers providing uniform behaviour for Python code required to
run under both Python 2.x and 3.x.

All operations emulate 2.x behaviour where applicable.
"""
import sys as _sys

if _sys.version_info[0] == 3:
    # Python 3.x specific logic.
    _sys_maxint = _sys.maxsize

_int_type = int

_str_type = str

_bytes_type = lambda x: bytes(x, 'UTF-8')

_is_str = lambda x: isinstance(x, (str, type(''.encode())))

_is_int = lambda x: isinstance(x, int)

_callable = lambda x: hasattr(x, '__call__')

_dict_keys = lambda x: list(x.keys())

_dict_items = lambda x: list(x.items())

_iter_dict_keys = lambda x: x.keys()

def _bytes_join(*args):
        return ''.encode().join(*args)

def _zip(*args):
        return list(zip(*args))

def _range(*args, **kwargs):
        return list(range(*args, **kwargs))

_iter_range = range

def _iter_next(x):
        return next(x)

elif _sys.version_info[0:2] > [2, 3]:
    # Python 2.4 or higher.
    _sys_maxint = _sys.maxint

_int_type = (int, long)

_str_type = basestring

_bytes_type = str

_is_str = lambda x: isinstance(x, basestring)

_is_int = lambda x: isinstance(x, (int, long))

_callable = lambda x: callable(x)

_dict_keys = lambda x: x.keys()

_dict_items = lambda x: x.items()

_iter_dict_keys = lambda x: iter(x.keys())

def _bytes_join(*args):
        return ''.join(*args)

def _zip(*args):
        return zip(*args)

def _range(*args, **kwargs):
        return range(*args, **kwargs)

_iter_range = xrange

def _iter_next(x):
        return x.next()
else:
    # Unsupported versions.
    raise RuntimeError(
        'this module only supports Python 2.4.x or higher (including 3.x)!')

try:
    from importlib import resources as _importlib_resources
except ImportError:
    import importlib_resources as _importlib_resources

if hasattr(_importlib_resources, 'files'):
    def _open_binary(pkg, res):
        return _importlib_resources.files(pkg).joinpath(res).open('rb')
else:
    _open_binary = _importlib_resources.open_binary

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