[1.4.x] Updated six to 1.8.0.

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

# SOFTWARE.

from __future__ import absolute_import

import functools

import operator

import sys

import types

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

__version__ = "1.6.1"

__version__ = "1.8.0"

# Useful for very coarse version differentiation.

        self.name = name

    def __get__(self, obj, tp):

        try:

        result = self._resolve()

        except ImportError:

            # See the nice big comment in MovedModule.__getattr__.

            raise AttributeError("%s could not be imported " % self.name)

        setattr(obj, self.name, result) # Invokes __set__.

        # This is a bit ugly, but it avoids running this again.

        delattr(obj.__class__, self.name)

        return _import_module(self.mod)

    def __getattr__(self, attr):

        # It turns out many Python frameworks like to traverse sys.modules and

        # try to load various attributes. This causes problems if this is a

        # platform-specific module on the wrong platform, like _winreg on

        # Unixes. Therefore, we silently pretend unimportable modules do not

        # have any attributes. See issues #51, #53, #56, and #63 for the full

        # tales of woe.

        #

        # First, if possible, avoid loading the module just to look at __file__,

        # __name__, or __path__.

        if (attr in ("__file__", "__name__", "__path__") and

            self.mod not in sys.modules):

            raise AttributeError(attr)

        try:

        _module = self._resolve()

        except ImportError:

            raise AttributeError(attr)

        value = getattr(_module, attr)

        setattr(self, attr, value)

        return value

        return getattr(module, self.attr)

class _SixMetaPathImporter(object):

    """

    A meta path importer to import six.moves and its submodules.

    This class implements a PEP302 finder and loader. It should be compatible

    with Python 2.5 and all existing versions of Python3

    """

    def __init__(self, six_module_name):

        self.name = six_module_name

        self.known_modules = {}

    def _add_module(self, mod, *fullnames):

        for fullname in fullnames:

            self.known_modules[self.name + "." + fullname] = mod

    def _get_module(self, fullname):

        return self.known_modules[self.name + "." + fullname]

    def find_module(self, fullname, path=None):

        if fullname in self.known_modules:

            return self

        return None

    def __get_module(self, fullname):

        try:

            return self.known_modules[fullname]

        except KeyError:

            raise ImportError("This loader does not know module " + fullname)

    def load_module(self, fullname):

        try:

            # in case of a reload

            return sys.modules[fullname]

        except KeyError:

            pass

        mod = self.__get_module(fullname)

        if isinstance(mod, MovedModule):

            mod = mod._resolve()

        else:

            mod.__loader__ = self

        sys.modules[fullname] = mod

        return mod

    def is_package(self, fullname):

        """

        Return true, if the named module is a package.

        We need this method to get correct spec objects with

        Python 3.4 (see PEP451)

        """

        return hasattr(self.__get_module(fullname), "__path__")

    def get_code(self, fullname):

        """Return None

        Required, if is_package is implemented"""

        self.__get_module(fullname)  # eventually raises ImportError

        return None

    get_source = get_code  # same as get_code

_importer = _SixMetaPathImporter(__name__)

class _MovedItems(_LazyModule):

    """Lazy loading of moved objects"""

    __path__ = []  # mark as package

_moved_attributes = [

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

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

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

    MovedAttribute("intern", "__builtin__", "sys"),

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

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

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

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

    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),

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

    MovedAttribute("UserDict", "UserDict", "collections"),

    MovedAttribute("UserList", "UserList", "collections"),

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

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

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

    MovedModule("configparser", "ConfigParser"),

    MovedModule("copyreg", "copy_reg"),

    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),

    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),

    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),

    MovedModule("http_cookies", "Cookie", "http.cookies"),

    MovedModule("html_entities", "htmlentitydefs", "html.entities"),

    MovedModule("html_parser", "HTMLParser", "html.parser"),

    MovedModule("http_client", "httplib", "http.client"),

    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),

    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),

    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),

    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),

    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),

    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),

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

    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),

    MovedModule("xmlrpc_server", "xmlrpclib", "xmlrpc.server"),

    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),

    MovedModule("winreg", "_winreg"),

]

for attr in _moved_attributes:

    setattr(_MovedItems, attr.name, attr)

    if isinstance(attr, MovedModule):

        sys.modules[__name__ + ".moves." + attr.name] = attr

        _importer._add_module(attr, "moves." + attr.name)

del attr

_MovedItems._moved_attributes = _moved_attributes

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

moves = _MovedItems(__name__ + ".moves")

_importer._add_module(moves, "moves")

class Module_six_moves_urllib_parse(_LazyModule):

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

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

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

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

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

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

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

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

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

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

]

for attr in _urllib_parse_moved_attributes:

    setattr(Module_six_moves_urllib_parse, attr.name, attr)

Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes

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

_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),

                      "moves.urllib_parse", "moves.urllib.parse")

class Module_six_moves_urllib_error(_LazyModule):

Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes

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

_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),

                      "moves.urllib_error", "moves.urllib.error")

class Module_six_moves_urllib_request(_LazyModule):

Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes

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

_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),

                      "moves.urllib_request", "moves.urllib.request")

class Module_six_moves_urllib_response(_LazyModule):

Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes

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

_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),

                      "moves.urllib_response", "moves.urllib.response")

class Module_six_moves_urllib_robotparser(_LazyModule):

Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes

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

_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),

                      "moves.urllib_robotparser", "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"]

    __path__ = []  # mark as package

    parse = _importer._get_module("moves.urllib_parse")

    error = _importer._get_module("moves.urllib_error")

    request = _importer._get_module("moves.urllib_request")

    response = _importer._get_module("moves.urllib_response")

    robotparser = _importer._get_module("moves.urllib_robotparser")

    def __dir__(self):

        return ['parse', 'error', 'request', 'response', 'robotparser']

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

_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),

                      "moves.urllib")

def add_move(move):

    _func_code = "__code__"

    _func_defaults = "__defaults__"

    _func_globals = "__globals__"

    _iterkeys = "keys"

    _itervalues = "values"

    _iteritems = "items"

    _iterlists = "lists"

else:

    _meth_func = "im_func"

    _meth_self = "im_self"

    _func_defaults = "func_defaults"

    _func_globals = "func_globals"

    _iterkeys = "iterkeys"

    _itervalues = "itervalues"

    _iteritems = "iteritems"

    _iterlists = "iterlists"

try:

    advance_iterator = next

get_function_globals = operator.attrgetter(_func_globals)

if PY3:

    def iterkeys(d, **kw):

        return iter(d.keys(**kw))

    def itervalues(d, **kw):

        return iter(d.values(**kw))

    def iteritems(d, **kw):

        return iter(d.items(**kw))

    def iterlists(d, **kw):

        return iter(d.lists(**kw))

else:

    def iterkeys(d, **kw):

    """Return an iterator over the keys of a dictionary."""

    return iter(getattr(d, _iterkeys)(**kw))

        return iter(d.iterkeys(**kw))

    def itervalues(d, **kw):

    """Return an iterator over the values of a dictionary."""

    return iter(getattr(d, _itervalues)(**kw))

        return iter(d.itervalues(**kw))

    def iteritems(d, **kw):

    """Return an iterator over the (key, value) pairs of a dictionary."""

    return iter(getattr(d, _iteritems)(**kw))

        return iter(d.iteritems(**kw))

    def iterlists(d, **kw):

    """Return an iterator over the (key, [values]) pairs of a dictionary."""

    return iter(getattr(d, _iterlists)(**kw))

        return iter(d.iterlists(**kw))

_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")

_add_doc(itervalues, "Return an iterator over the values of a dictionary.")

_add_doc(iteritems,

         "Return an iterator over the (key, value) pairs of a dictionary.")

_add_doc(iterlists,

         "Return an iterator over the (key, [values]) pairs of a dictionary.")

if PY3:

    def reraise(tp, value, tb=None):

        if value is None:

            value = tp()

        if value.__traceback__ is not tb:

            raise value.with_traceback(tb)

        raise value

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

if sys.version_info[0:2] < (3, 4):

    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,

              updated=functools.WRAPPER_UPDATES):

        def wrapper(f):

            f = functools.wraps(wrapped)(f)

            f.__wrapped__ = wrapped

            return f

        return wrapper

else:

    wraps = functools.wraps

def with_metaclass(meta, *bases):

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

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

    # This requires a bit of explanation: the basic idea is to make a dummy

    # metaclass for one level of class instantiation that replaces itself with

    # the actual metaclass.

    class metaclass(meta):

        def __new__(cls, name, this_bases, d):

            return meta(name, bases, d)

    return type.__new__(metaclass, 'temporary_class', (), {})

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)

        slots = orig_vars.get('__slots__')

        if slots is not None:

            if isinstance(slots, str):

                slots = [slots]

            for slots_var in slots:

                orig_vars.pop(slots_var)

        orig_vars.pop('__dict__', None)

        orig_vars.pop('__weakref__', None)

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

    return wrapper

# Complete the moves implementation.

# This code is at the end of this module to speed up module loading.

# Turn this module into a package.

__path__ = []  # required for PEP 302 and PEP 451

__package__ = __name__  # see PEP 366 @ReservedAssignment

if globals().get("__spec__") is not None:

    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable

# Remove other six meta path importers, since they cause problems. This can

# happen if six is removed from sys.modules and then reloaded. (Setuptools does

# this for some reason.)

if sys.meta_path:

    for i, importer in enumerate(sys.meta_path):

        # Here's some real nastiness: Another "instance" of the six module might

        # be floating around. Therefore, we can't use isinstance() to check for

        # the six meta path importer, since the other six instance will have

        # inserted an importer with different class.

        if (type(importer).__name__ == "_SixMetaPathImporter" and

            importer.name == __name__):

            del sys.meta_path[i]

            break

    del i, importer

# Finally, add the importer to the meta path import hook.

sys.meta_path.append(_importer)

### Additional customizations for Django ###

===========================

Django 1.4.17 release notes

===========================

*Under development*

Django 1.4.17 ...

Additionally, Django's vendored version of six, :mod:`django.utils.six`, has

been upgraded to the latest release (1.8.0).

.. toctree::

   :maxdepth: 1

   1.4.17

   1.4.16

   1.4.15

   1.4.14