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"""
pies/overrides.py
Overrides Python syntax to conform to the Python3 version as much as possible using a '*' import
Copyright (C) 2013 Timothy Edmund Crosley
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
"""
from __future__ import absolute_import
import functools
from numbers import Integral
from .version_info import PY2, PY3, VERSION
__version__ = "2.0.1"
native_dict = dict
native_round = round
native_filter = filter
native_map = map
native_zip = zip
native_range = range
native_str = str
native_chr = chr
native_input = input
native_next = next
common = ['native_dict', 'native_round', 'native_filter', 'native_map', 'native_range', 'native_str', 'native_chr',
'native_input', 'PY2', 'PY3', 'u', 'itemsview', 'valuesview', 'keysview', 'execute', 'integer_types',
'native_next']
if PY3:
import urllib
import builtins
from urllib import parse
from collections import OrderedDict
integer_types = (int, )
def u(string):
return string
def itemsview(collection):
return collection.items()
def valuesview(collection):
return collection.values()
def keysview(collection):
return collection.keys()
urllib.quote = parse.quote
urllib.quote_plus = parse.quote_plus
urllib.unquote = parse.unquote
urllib.unquote_plus = parse.unquote_plus
urllib.urlencode = parse.urlencode
execute = getattr(builtins, 'exec')
if VERSION[1] < 2:
def callable(entity):
return hasattr(entity, '__call__')
common.append('callable')
__all__ = common + ['OrderedDict', 'urllib']
else:
from itertools import ifilter as filter
from itertools import imap as map
from itertools import izip as zip
from decimal import Decimal, ROUND_HALF_EVEN
try:
from collections import OrderedDict
except ImportError:
from ordereddict import OrderedDict
import codecs
str = unicode
chr = unichr
input = raw_input
range = xrange
integer_types = (int, long)
def _create_not_allowed(name):
def _not_allow(*args, **kwargs):
raise NameError("name '{0}' is not defined".format(name))
_not_allow.__name__ = name
return _not_allow
for removed in ('apply', 'cmp', 'coerce', 'execfile', 'raw_input', 'unpacks'):
globals()[removed] = _create_not_allowed(removed)
def u(string):
return codecs.unicode_escape_decode(string[0])
def execute(_code_, _globs_=None, _locs_=None):
"""Execute code in a namespace."""
if _globs_ is None:
frame = sys._getframe(1)
_globs_ = frame.f_globals
if _locs_ is None:
_locs_ = frame.f_locals
del frame
elif _locs_ is None:
_locs_ = _globs_
exec("""exec _code_ in _globs_, _locs_""")
class _dict_view_base(object):
__slots__ = ('_dictionary', )
def __init__(self, dictionary):
self._dictionary = dictionary
def __repr__(self):
return "{0}({1})".format(self.__class__.__name__, str(list(self.__iter__())))
def __unicode__(self):
return str(self.__repr__())
def __str__(self):
return str(self.__unicode__())
class dict_keys(_dict_view_base):
__slots__ = ()
def __iter__(self):
return self._dictionary.iterkeys()
class dict_values(_dict_view_base):
__slots__ = ()
def __iter__(self):
return self._dictionary.itervalues()
class dict_items(_dict_view_base):
__slots__ = ()
def __iter__(self):
return self._dictionary.iteritems()
def itemsview(collection):
return dict_items(collection)
def valuesview(collection):
return dict_values(collection)
def keysview(collection):
return dict_keys(collection)
class dict(native_dict):
def has_key(self, *args, **kwargs):
return AttributeError("'dict' object has no attribute 'has_key'")
def items(self):
return dict_items(self)
def keys(self):
return dict_keys(self)
def values(self):
return dict_values(self)
def round(number, ndigits=None):
return_int = False
if ndigits is None:
return_int = True
ndigits = 0
if hasattr(number, '__round__'):
return number.__round__(ndigits)
if ndigits < 0:
raise NotImplementedError('negative ndigits not supported yet')
exponent = Decimal('10') ** (-ndigits)
d = Decimal.from_float(number).quantize(exponent,
rounding=ROUND_HALF_EVEN)
if return_int:
return int(d)
else:
return float(d)
def next(iterator):
try:
iterator.__next__()
except Exception:
native_next(iterator)
__all__ = common + ['round', 'dict', 'apply', 'cmp', 'coerce', 'execfile', 'raw_input', 'unpacks', 'str', 'chr',
'input', 'range', 'filter', 'map', 'zip']
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