"""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 math as _math import abc import functools import sys from numbers import Integral from ._utils import unmodified_isinstance, with_metaclass from .version_info import PY2, PY3, VERSION 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 native_object = object 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', 'native_object', 'with_metaclass'] 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) # Reloading the sys module kills IPython's output printing. #import sys #stdout = sys.stdout #stderr = sys.stderr #reload(sys) #sys.stdout = stdout #sys.stderr = stderr #sys.setdefaultencoding('utf-8') 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(s): if isinstance(s, unicode): return s else: return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape") 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(unmodified_isinstance(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') # Python 2.6 doesn't support from_float. if sys.version_info[1] <= 6: return native_round(number, ndigits) 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) class FixStr(type): def __new__(cls, name, bases, dct): if '__str__' in dct: dct['__unicode__'] = dct['__str__'] dct['__str__'] = lambda self: self.__unicode__().encode('utf-8') return type.__new__(cls, name, bases, dct) if sys.version_info[1] <= 6: def __instancecheck__(cls, instance): if cls.__name__ == "object": return isinstance(instance, native_object) subclass = getattr(instance, '__class__', None) subtype = type(instance) instance_type = getattr(abc, '_InstanceType', None) if not instance_type: class test_object: pass instance_type = type(test_object) if subtype is instance_type: subtype = subclass if subtype is subclass or subclass is None: return cls.__subclasscheck__(subtype) return (cls.__subclasscheck__(subclass) or cls.__subclasscheck__(subtype)) else: def __instancecheck__(cls, instance): if cls.__name__ == "object": return isinstance(instance, native_object) return type.__instancecheck__(cls, instance) class object(with_metaclass(FixStr, object)): pass __all__ = common + ['round', 'dict', 'apply', 'cmp', 'coerce', 'execfile', 'raw_input', 'unpacks', 'str', 'chr', 'input', 'range', 'filter', 'map', 'zip', 'object']