[1.5.x] Updated the bundled version of six to 1.4.0.

# Copyright (c) 2010-2013 Benjamin Peterson

#

# 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:

# 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.

# 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.

import operator

import sys

import types

__author__ = "Benjamin Peterson <benjamin@python.org>"

__version__ = "1.2.0"

__version__ = "1.4.0"

# True if we are running on Python 3.

# Useful for very coarse version differentiation.

PY2 = sys.version_info[0] == 2

PY3 = sys.version_info[0] == 3

if PY3:

_moved_attributes = [

    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),

    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),

    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),

    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),

    MovedAttribute("map", "itertools", "builtins", "imap", "map"),

    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),

    MovedAttribute("reload_module", "__builtin__", "imp", "reload"),

    MovedAttribute("reduce", "__builtin__", "functools"),

    MovedAttribute("StringIO", "StringIO", "io"),

    MovedAttribute("UserString", "UserString", "collections"),

    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),

    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),

    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),

    MovedModule("builtins", "__builtin__"),

    MovedModule("configparser", "ConfigParser"),

    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),

    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",

                "tkinter.simpledialog"),

    MovedModule("urllib_parse", "six.moves.urllib_parse", "urllib.parse"),

    MovedModule("urllib_error", "six.moves.urllib_error", "urllib.error"),

    MovedModule("urllib", "six.moves.urllib", "six.moves.urllib"),

    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),

    MovedModule("winreg", "_winreg"),

]

moves = sys.modules[__name__ + ".moves"] = _MovedItems("moves")

class Module_six_moves_urllib_parse(types.ModuleType):

    """Lazy loading of moved objects in six.moves.urllib_parse"""

_urllib_parse_moved_attributes = [

    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),

    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),

    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),

    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),

    MovedAttribute("urljoin", "urlparse", "urllib.parse"),

    MovedAttribute("urlparse", "urlparse", "urllib.parse"),

    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),

    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),

    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),

    MovedAttribute("quote", "urllib", "urllib.parse"),

    MovedAttribute("quote_plus", "urllib", "urllib.parse"),

    MovedAttribute("unquote", "urllib", "urllib.parse"),

    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),

    MovedAttribute("urlencode", "urllib", "urllib.parse"),

]

for attr in _urllib_parse_moved_attributes:

    setattr(Module_six_moves_urllib_parse, attr.name, attr)

del attr

sys.modules[__name__ + ".moves.urllib_parse"] = Module_six_moves_urllib_parse("six.moves.urllib_parse")

sys.modules[__name__ + ".moves.urllib.parse"] = Module_six_moves_urllib_parse("six.moves.urllib.parse")

class Module_six_moves_urllib_error(types.ModuleType):

    """Lazy loading of moved objects in six.moves.urllib_error"""

_urllib_error_moved_attributes = [

    MovedAttribute("URLError", "urllib2", "urllib.error"),

    MovedAttribute("HTTPError", "urllib2", "urllib.error"),

    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),

]

for attr in _urllib_error_moved_attributes:

    setattr(Module_six_moves_urllib_error, attr.name, attr)

del attr

sys.modules[__name__ + ".moves.urllib_error"] = Module_six_moves_urllib_error("six.moves.urllib_error")

sys.modules[__name__ + ".moves.urllib.error"] = Module_six_moves_urllib_error("six.moves.urllib.error")

class Module_six_moves_urllib_request(types.ModuleType):

    """Lazy loading of moved objects in six.moves.urllib_request"""

_urllib_request_moved_attributes = [

    MovedAttribute("urlopen", "urllib2", "urllib.request"),

    MovedAttribute("install_opener", "urllib2", "urllib.request"),

    MovedAttribute("build_opener", "urllib2", "urllib.request"),

    MovedAttribute("pathname2url", "urllib", "urllib.request"),

    MovedAttribute("url2pathname", "urllib", "urllib.request"),

    MovedAttribute("getproxies", "urllib", "urllib.request"),

    MovedAttribute("Request", "urllib2", "urllib.request"),

    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),

    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),

    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),

    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),

    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),

    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),

    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),

    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),

    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),

    MovedAttribute("FileHandler", "urllib2", "urllib.request"),

    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),

    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),

    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),

    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),

    MovedAttribute("urlretrieve", "urllib", "urllib.request"),

    MovedAttribute("urlcleanup", "urllib", "urllib.request"),

    MovedAttribute("URLopener", "urllib", "urllib.request"),

    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),

]

for attr in _urllib_request_moved_attributes:

    setattr(Module_six_moves_urllib_request, attr.name, attr)

del attr

sys.modules[__name__ + ".moves.urllib_request"] = Module_six_moves_urllib_request("six.moves.urllib_request")

sys.modules[__name__ + ".moves.urllib.request"] = Module_six_moves_urllib_request("six.moves.urllib.request")

class Module_six_moves_urllib_response(types.ModuleType):

    """Lazy loading of moved objects in six.moves.urllib_response"""

_urllib_response_moved_attributes = [

    MovedAttribute("addbase", "urllib", "urllib.response"),

    MovedAttribute("addclosehook", "urllib", "urllib.response"),

    MovedAttribute("addinfo", "urllib", "urllib.response"),

    MovedAttribute("addinfourl", "urllib", "urllib.response"),

]

for attr in _urllib_response_moved_attributes:

    setattr(Module_six_moves_urllib_response, attr.name, attr)

del attr

sys.modules[__name__ + ".moves.urllib_response"] = Module_six_moves_urllib_response("six.moves.urllib_response")

sys.modules[__name__ + ".moves.urllib.response"] = Module_six_moves_urllib_response("six.moves.urllib.response")

class Module_six_moves_urllib_robotparser(types.ModuleType):

    """Lazy loading of moved objects in six.moves.urllib_robotparser"""

_urllib_robotparser_moved_attributes = [

    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),

]

for attr in _urllib_robotparser_moved_attributes:

    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)

del attr

sys.modules[__name__ + ".moves.urllib_robotparser"] = Module_six_moves_urllib_robotparser("six.moves.urllib_robotparser")

sys.modules[__name__ + ".moves.urllib.robotparser"] = Module_six_moves_urllib_robotparser("six.moves.urllib.robotparser")

class Module_six_moves_urllib(types.ModuleType):

    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""

    parse = sys.modules[__name__ + ".moves.urllib_parse"]

    error = sys.modules[__name__ + ".moves.urllib_error"]

    request = sys.modules[__name__ + ".moves.urllib_request"]

    response = sys.modules[__name__ + ".moves.urllib_response"]

    robotparser = sys.modules[__name__ + ".moves.urllib_robotparser"]

sys.modules[__name__ + ".moves.urllib"] = Module_six_moves_urllib("six.moves.urllib")

def add_move(move):

    """Add an item to six.moves."""

    setattr(_MovedItems, move.name, move)

    def get_unbound_function(unbound):

        return unbound

    create_bound_method = types.MethodType

    Iterator = object

else:

    def get_unbound_function(unbound):

        return unbound.im_func

    def create_bound_method(func, obj):

        return types.MethodType(func, obj, obj.__class__)

    class Iterator(object):

        def next(self):

        return s.encode("latin-1")

    def u(s):

        return s

    unichr = chr

    if sys.version_info[1] <= 1:

        def int2byte(i):

            return bytes((i,))

    else:

        # This is about 2x faster than the implementation above on 3.2+

        int2byte = operator.methodcaller("to_bytes", 1, "big")

    byte2int = operator.itemgetter(0)

    indexbytes = operator.getitem

    iterbytes = iter

    import io

    StringIO = io.StringIO

    BytesIO = io.BytesIO

        return s

    def u(s):

        return unicode(s, "unicode_escape")

    unichr = unichr

    int2byte = chr

    def byte2int(bs):

        return ord(bs[0])

    def indexbytes(buf, i):

        return ord(buf[i])

    def iterbytes(buf):

        return (ord(byte) for byte in buf)

    import StringIO

    StringIO = BytesIO = StringIO.StringIO

_add_doc(b, """Byte literal""")

_add_doc(reraise, """Reraise an exception.""")

def with_metaclass(meta, base=object):

def with_metaclass(meta, *bases):

    """Create a base class with a metaclass."""

    return meta("NewBase", (base,), {})

    return meta("NewBase", bases, {})

def add_metaclass(metaclass):

    """Class decorator for creating a class with a metaclass."""

    def wrapper(cls):

        orig_vars = cls.__dict__.copy()

        orig_vars.pop('__dict__', None)

        orig_vars.pop('__weakref__', None)

        for slots_var in orig_vars.get('__slots__', ()):

            orig_vars.pop(slots_var)

        return metaclass(cls.__name__, cls.__bases__, orig_vars)

    return wrapper

### Additional customizations for Django ###