diff --git a/django/utils/simplejson.py b/django/utils/simplejson.py
new file mode 100644
index 0000000..b265419
--- /dev/null
+++ b/django/utils/simplejson.py
@@ -0,0 +1,28 @@
+# Make sure that `from simplejson import *` isn't a circular import
+from __future__ import absolute_import
+
+import warnings
+
+warnings.warn(
+    "The 'django.utils.simplejson' module is deprecated, "
+    "use 'json' from the standard library instead; "
+    "please see the Django 1.5 release notes "
+    "(https://docs.djangoproject.com/en/dev/releases/1.5/).",
+    PendingDeprecationWarning)
+
+# Try to use the system simplejson first. If that fails, use python's standard
+# json module.
+try:
+    from simplejson import *
+    from simplejson import __version__
+except ImportError:
+    from json import *
+    from json import __version__
+
+    try:
+        # There is a "json" package around that is not Python's "json", so we
+        # check for something that is only in the namespace of the version we
+        # want.
+        JSONDecoder
+    except NameError:
+        raise ImportError("Module 'json' is not from python's standard library")
diff --git a/django/utils/simplejson/LICENSE.txt b/django/utils/simplejson/LICENSE.txt
deleted file mode 100644
index ad95f29..0000000
--- a/django/utils/simplejson/LICENSE.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Copyright (c) 2006 Bob Ippolito
-
-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.
diff --git a/django/utils/simplejson/__init__.py b/django/utils/simplejson/__init__.py
deleted file mode 100644
index a9418da..0000000
--- a/django/utils/simplejson/__init__.py
+++ /dev/null
@@ -1,353 +0,0 @@
-r"""JSON (JavaScript Object Notation) <http://json.org> is a subset of
-JavaScript syntax (ECMA-262 3rd edition) used as a lightweight data
-interchange format.
-
-:mod:`simplejson` exposes an API familiar to users of the standard library
-:mod:`marshal` and :mod:`pickle` modules. It is the externally maintained
-version of the :mod:`json` library contained in Python 2.6, but maintains
-compatibility with Python 2.4 and Python 2.5 and (currently) has
-significant performance advantages, even without using the optional C
-extension for speedups.
-
-Encoding basic Python object hierarchies::
-
-    >>> import simplejson as json
-    >>> json.dumps(['foo', {'bar': ('baz', None, 1.0, 2)}])
-    '["foo", {"bar": ["baz", null, 1.0, 2]}]'
-    >>> print json.dumps("\"foo\bar")
-    "\"foo\bar"
-    >>> print json.dumps(u'\u1234')
-    "\u1234"
-    >>> print json.dumps('\\')
-    "\\"
-    >>> print json.dumps({"c": 0, "b": 0, "a": 0}, sort_keys=True)
-    {"a": 0, "b": 0, "c": 0}
-    >>> from StringIO import StringIO
-    >>> io = StringIO()
-    >>> json.dump(['streaming API'], io)
-    >>> io.getvalue()
-    '["streaming API"]'
-
-Compact encoding::
-
-    >>> import simplejson as json
-    >>> json.dumps([1,2,3,{'4': 5, '6': 7}], separators=(',',':'))
-    '[1,2,3,{"4":5,"6":7}]'
-
-Pretty printing::
-
-    >>> import simplejson as json
-    >>> s = json.dumps({'4': 5, '6': 7}, sort_keys=True, indent=4)
-    >>> print '\n'.join([l.rstrip() for l in  s.splitlines()])
-    {
-        "4": 5,
-        "6": 7
-    }
-
-Decoding JSON::
-
-    >>> import simplejson as json
-    >>> obj = [u'foo', {u'bar': [u'baz', None, 1.0, 2]}]
-    >>> json.loads('["foo", {"bar":["baz", null, 1.0, 2]}]') == obj
-    True
-    >>> json.loads('"\\"foo\\bar"') == u'"foo\x08ar'
-    True
-    >>> from StringIO import StringIO
-    >>> io = StringIO('["streaming API"]')
-    >>> json.load(io)[0] == 'streaming API'
-    True
-
-Specializing JSON object decoding::
-
-    >>> import simplejson as json
-    >>> def as_complex(dct):
-    ...     if '__complex__' in dct:
-    ...         return complex(dct['real'], dct['imag'])
-    ...     return dct
-    ...
-    >>> json.loads('{"__complex__": true, "real": 1, "imag": 2}',
-    ...     object_hook=as_complex)
-    (1+2j)
-    >>> import decimal
-    >>> json.loads('1.1', parse_float=decimal.Decimal) == decimal.Decimal('1.1')
-    True
-
-Specializing JSON object encoding::
-
-    >>> import simplejson as json
-    >>> def encode_complex(obj):
-    ...     if isinstance(obj, complex):
-    ...         return [obj.real, obj.imag]
-    ...     raise TypeError("%r is not JSON serializable" % (o,))
-    ...
-    >>> json.dumps(2 + 1j, default=encode_complex)
-    '[2.0, 1.0]'
-    >>> json.JSONEncoder(default=encode_complex).encode(2 + 1j)
-    '[2.0, 1.0]'
-    >>> ''.join(json.JSONEncoder(default=encode_complex).iterencode(2 + 1j))
-    '[2.0, 1.0]'
-
-
-Using simplejson.tool from the shell to validate and pretty-print::
-
-    $ echo '{"json":"obj"}' | python -msimplejson.tool
-    {
-        "json": "obj"
-    }
-    $ echo '{ 1.2:3.4}' | python -msimplejson.tool
-    Expecting property name: line 1 column 2 (char 2)
-"""
-
-# Django modification: try to use the system version first, providing it's
-# either of a later version of has the C speedups in place. Otherwise, fall
-# back to our local copy.
-
-__version__ = '2.0.7'
-
-use_system_version = False
-try:
-    # The system-installed version has priority providing it is either not an
-    # earlier version or it contains the C speedups.
-    import simplejson
-    if (simplejson.__version__.split('.') >= __version__.split('.') or
-            hasattr(simplejson, '_speedups')):
-        from simplejson import *
-        use_system_version = True
-        # Make sure we copy over the version. See #17071
-        __version__ = simplejson.__version__
-except ImportError:
-    pass
-
-if not use_system_version:
-    try:
-        from json import *      # Python 2.6 preferred over local copy.
-
-        # There is a "json" package around that is not Python's "json", so we
-        # check for something that is only in the namespace of the version we
-        # want.
-        JSONDecoder
-
-        use_system_version = True
-        # Make sure we copy over the version. See #17071
-        __version__ = json.__version__
-    except (ImportError, NameError):
-        pass
-
-# If all else fails, we have a bundled version that can be used.
-if not use_system_version:
-    __all__ = [
-        'dump', 'dumps', 'load', 'loads',
-        'JSONDecoder', 'JSONEncoder',
-    ]
-
-    from django.utils.simplejson.decoder import JSONDecoder
-    from django.utils.simplejson.encoder import JSONEncoder
-
-    _default_encoder = JSONEncoder(
-        skipkeys=False,
-        ensure_ascii=True,
-        check_circular=True,
-        allow_nan=True,
-        indent=None,
-        separators=None,
-        encoding='utf-8',
-        default=None,
-    )
-
-    def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True,
-            allow_nan=True, cls=None, indent=None, separators=None,
-            encoding='utf-8', default=None, **kw):
-        """Serialize ``obj`` as a JSON formatted stream to ``fp`` (a
-        ``.write()``-supporting file-like object).
-
-        If ``skipkeys`` is ``True`` then ``dict`` keys that are not basic types
-        (``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``)
-        will be skipped instead of raising a ``TypeError``.
-
-        If ``ensure_ascii`` is ``False``, then the some chunks written to ``fp``
-        may be ``unicode`` instances, subject to normal Python ``str`` to
-        ``unicode`` coercion rules. Unless ``fp.write()`` explicitly
-        understands ``unicode`` (as in ``codecs.getwriter()``) this is likely
-        to cause an error.
-
-        If ``check_circular`` is ``False``, then the circular reference check
-        for container types will be skipped and a circular reference will
-        result in an ``OverflowError`` (or worse).
-
-        If ``allow_nan`` is ``False``, then it will be a ``ValueError`` to
-        serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``)
-        in strict compliance of the JSON specification, instead of using the
-        JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
-
-        If ``indent`` is a non-negative integer, then JSON array elements and object
-        members will be pretty-printed with that indent level. An indent level
-        of 0 will only insert newlines. ``None`` is the most compact representation.
-
-        If ``separators`` is an ``(item_separator, dict_separator)`` tuple
-        then it will be used instead of the default ``(', ', ': ')`` separators.
-        ``(',', ':')`` is the most compact JSON representation.
-
-        ``encoding`` is the character encoding for str instances, default is UTF-8.
-
-        ``default(obj)`` is a function that should return a serializable version
-        of obj or raise TypeError. The default simply raises TypeError.
-
-        To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
-        ``.default()`` method to serialize additional types), specify it with
-        the ``cls`` kwarg.
-
-        """
-        # cached encoder
-        if (skipkeys is False and ensure_ascii is True and
-            check_circular is True and allow_nan is True and
-            cls is None and indent is None and separators is None and
-            encoding == 'utf-8' and default is None and not kw):
-            iterable = _default_encoder.iterencode(obj)
-        else:
-            if cls is None:
-                cls = JSONEncoder
-            iterable = cls(skipkeys=skipkeys, ensure_ascii=ensure_ascii,
-                check_circular=check_circular, allow_nan=allow_nan, indent=indent,
-                separators=separators, encoding=encoding,
-                default=default, **kw).iterencode(obj)
-        # could accelerate with writelines in some versions of Python, at
-        # a debuggability cost
-        for chunk in iterable:
-            fp.write(chunk)
-
-
-    def dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True,
-            allow_nan=True, cls=None, indent=None, separators=None,
-            encoding='utf-8', default=None, **kw):
-        """Serialize ``obj`` to a JSON formatted ``str``.
-
-        If ``skipkeys`` is ``True`` then ``dict`` keys that are not basic types
-        (``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``)
-        will be skipped instead of raising a ``TypeError``.
-
-        If ``ensure_ascii`` is ``False``, then the return value will be a
-        ``unicode`` instance subject to normal Python ``str`` to ``unicode``
-        coercion rules instead of being escaped to an ASCII ``str``.
-
-        If ``check_circular`` is ``False``, then the circular reference check
-        for container types will be skipped and a circular reference will
-        result in an ``OverflowError`` (or worse).
-
-        If ``allow_nan`` is ``False``, then it will be a ``ValueError`` to
-        serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) in
-        strict compliance of the JSON specification, instead of using the
-        JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
-
-        If ``indent`` is a non-negative integer, then JSON array elements and
-        object members will be pretty-printed with that indent level. An indent
-        level of 0 will only insert newlines. ``None`` is the most compact
-        representation.
-
-        If ``separators`` is an ``(item_separator, dict_separator)`` tuple
-        then it will be used instead of the default ``(', ', ': ')`` separators.
-        ``(',', ':')`` is the most compact JSON representation.
-
-        ``encoding`` is the character encoding for str instances, default is UTF-8.
-
-        ``default(obj)`` is a function that should return a serializable version
-        of obj or raise TypeError. The default simply raises TypeError.
-
-        To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
-        ``.default()`` method to serialize additional types), specify it with
-        the ``cls`` kwarg.
-
-        """
-        # cached encoder
-        if (skipkeys is False and ensure_ascii is True and
-            check_circular is True and allow_nan is True and
-            cls is None and indent is None and separators is None and
-            encoding == 'utf-8' and default is None and not kw):
-            return _default_encoder.encode(obj)
-        if cls is None:
-            cls = JSONEncoder
-        return cls(
-            skipkeys=skipkeys, ensure_ascii=ensure_ascii,
-            check_circular=check_circular, allow_nan=allow_nan, indent=indent,
-            separators=separators, encoding=encoding, default=default,
-            **kw).encode(obj)
-
-
-    _default_decoder = JSONDecoder(encoding=None, object_hook=None)
-
-
-    def load(fp, encoding=None, cls=None, object_hook=None, parse_float=None,
-            parse_int=None, parse_constant=None, **kw):
-        """Deserialize ``fp`` (a ``.read()``-supporting file-like object containing
-        a JSON document) to a Python object.
-
-        If the contents of ``fp`` is encoded with an ASCII based encoding other
-        than utf-8 (e.g. latin-1), then an appropriate ``encoding`` name must
-        be specified. Encodings that are not ASCII based (such as UCS-2) are
-        not allowed, and should be wrapped with
-        ``codecs.getreader(fp)(encoding)``, or simply decoded to a ``unicode``
-        object and passed to ``loads()``
-
-        ``object_hook`` is an optional function that will be called with the
-        result of any object literal decode (a ``dict``). The return value of
-        ``object_hook`` will be used instead of the ``dict``. This feature
-        can be used to implement custom decoders (e.g. JSON-RPC class hinting).
-
-        To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
-        kwarg.
-
-        """
-        return loads(fp.read(),
-            encoding=encoding, cls=cls, object_hook=object_hook,
-            parse_float=parse_float, parse_int=parse_int,
-            parse_constant=parse_constant, **kw)
-
-
-    def loads(s, encoding=None, cls=None, object_hook=None, parse_float=None,
-            parse_int=None, parse_constant=None, **kw):
-        """Deserialize ``s`` (a ``str`` or ``unicode`` instance containing a JSON
-        document) to a Python object.
-
-        If ``s`` is a ``str`` instance and is encoded with an ASCII based encoding
-        other than utf-8 (e.g. latin-1) then an appropriate ``encoding`` name
-        must be specified. Encodings that are not ASCII based (such as UCS-2)
-        are not allowed and should be decoded to ``unicode`` first.
-
-        ``object_hook`` is an optional function that will be called with the
-        result of any object literal decode (a ``dict``). The return value of
-        ``object_hook`` will be used instead of the ``dict``. This feature
-        can be used to implement custom decoders (e.g. JSON-RPC class hinting).
-
-        ``parse_float``, if specified, will be called with the string
-        of every JSON float to be decoded. By default this is equivalent to
-        float(num_str). This can be used to use another datatype or parser
-        for JSON floats (e.g. decimal.Decimal).
-
-        ``parse_int``, if specified, will be called with the string
-        of every JSON int to be decoded. By default this is equivalent to
-        int(num_str). This can be used to use another datatype or parser
-        for JSON integers (e.g. float).
-
-        ``parse_constant``, if specified, will be called with one of the
-        following strings: -Infinity, Infinity, NaN, null, true, false.
-        This can be used to raise an exception if invalid JSON numbers
-        are encountered.
-
-        To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
-        kwarg.
-
-        """
-        if (cls is None and encoding is None and object_hook is None and
-                parse_int is None and parse_float is None and
-                parse_constant is None and not kw):
-            return _default_decoder.decode(s)
-        if cls is None:
-            cls = JSONDecoder
-        if object_hook is not None:
-            kw['object_hook'] = object_hook
-        if parse_float is not None:
-            kw['parse_float'] = parse_float
-        if parse_int is not None:
-            kw['parse_int'] = parse_int
-        if parse_constant is not None:
-            kw['parse_constant'] = parse_constant
-        return cls(encoding=encoding, **kw).decode(s)
diff --git a/django/utils/simplejson/decoder.py b/django/utils/simplejson/decoder.py
deleted file mode 100644
index 5a845cc..0000000
--- a/django/utils/simplejson/decoder.py
+++ /dev/null
@@ -1,345 +0,0 @@
-"""Implementation of JSONDecoder
-"""
-import re
-import sys
-import struct
-
-from django.utils.simplejson.scanner import make_scanner
-c_scanstring = None
-
-__all__ = ['JSONDecoder']
-
-FLAGS = re.VERBOSE | re.MULTILINE | re.DOTALL
-
-def _floatconstants():
-    _BYTES = '7FF80000000000007FF0000000000000'.decode('hex')
-    if sys.byteorder != 'big':
-        _BYTES = _BYTES[:8][::-1] + _BYTES[8:][::-1]
-    nan, inf = struct.unpack('dd', _BYTES)
-    return nan, inf, -inf
-
-NaN, PosInf, NegInf = _floatconstants()
-
-
-def linecol(doc, pos):
-    lineno = doc.count('\n', 0, pos) + 1
-    if lineno == 1:
-        colno = pos
-    else:
-        colno = pos - doc.rindex('\n', 0, pos)
-    return lineno, colno
-
-
-def errmsg(msg, doc, pos, end=None):
-    # Note that this function is called from _speedups
-    lineno, colno = linecol(doc, pos)
-    if end is None:
-        return '%s: line %d column %d (char %d)' % (msg, lineno, colno, pos)
-    endlineno, endcolno = linecol(doc, end)
-    return '%s: line %d column %d - line %d column %d (char %d - %d)' % (
-        msg, lineno, colno, endlineno, endcolno, pos, end)
-
-
-_CONSTANTS = {
-    '-Infinity': NegInf,
-    'Infinity': PosInf,
-    'NaN': NaN,
-}
-
-STRINGCHUNK = re.compile(r'(.*?)(["\\\x00-\x1f])', FLAGS)
-BACKSLASH = {
-    '"': u'"', '\\': u'\\', '/': u'/',
-    'b': u'\b', 'f': u'\f', 'n': u'\n', 'r': u'\r', 't': u'\t',
-}
-
-DEFAULT_ENCODING = "utf-8"
-
-def py_scanstring(s, end, encoding=None, strict=True, _b=BACKSLASH, _m=STRINGCHUNK.match):
-    """Scan the string s for a JSON string. End is the index of the
-    character in s after the quote that started the JSON string.
-    Unescapes all valid JSON string escape sequences and raises ValueError
-    on attempt to decode an invalid string. If strict is False then literal
-    control characters are allowed in the string.
-    
-    Returns a tuple of the decoded string and the index of the character in s
-    after the end quote."""
-    if encoding is None:
-        encoding = DEFAULT_ENCODING
-    chunks = []
-    _append = chunks.append
-    begin = end - 1
-    while 1:
-        chunk = _m(s, end)
-        if chunk is None:
-            raise ValueError(
-                errmsg("Unterminated string starting at", s, begin))
-        end = chunk.end()
-        content, terminator = chunk.groups()
-        # Content is contains zero or more unescaped string characters
-        if content:
-            if not isinstance(content, unicode):
-                content = unicode(content, encoding)
-            _append(content)
-        # Terminator is the end of string, a literal control character,
-        # or a backslash denoting that an escape sequence follows
-        if terminator == '"':
-            break
-        elif terminator != '\\':
-            if strict:
-                msg = "Invalid control character %r at" % (terminator,)
-                raise ValueError(msg, s, end)
-            else:
-                _append(terminator)
-                continue
-        try:
-            esc = s[end]
-        except IndexError:
-            raise ValueError(
-                errmsg("Unterminated string starting at", s, begin))
-        # If not a unicode escape sequence, must be in the lookup table
-        if esc != 'u':
-            try:
-                char = _b[esc]
-            except KeyError:
-                raise ValueError(
-                    errmsg("Invalid \\escape: %r" % (esc,), s, end))
-            end += 1
-        else:
-            # Unicode escape sequence
-            esc = s[end + 1:end + 5]
-            next_end = end + 5
-            if len(esc) != 4:
-                msg = "Invalid \\uXXXX escape"
-                raise ValueError(errmsg(msg, s, end))
-            uni = int(esc, 16)
-            # Check for surrogate pair on UCS-4 systems
-            if 0xd800 <= uni <= 0xdbff and sys.maxunicode > 65535:
-                msg = "Invalid \\uXXXX\\uXXXX surrogate pair"
-                if not s[end + 5:end + 7] == '\\u':
-                    raise ValueError(errmsg(msg, s, end))
-                esc2 = s[end + 7:end + 11]
-                if len(esc2) != 4:
-                    raise ValueError(errmsg(msg, s, end))
-                uni2 = int(esc2, 16)
-                uni = 0x10000 + (((uni - 0xd800) << 10) | (uni2 - 0xdc00))
-                next_end += 6
-            char = unichr(uni)
-            end = next_end
-        # Append the unescaped character
-        _append(char)
-    return u''.join(chunks), end
-
-
-# Use speedup if available
-scanstring = c_scanstring or py_scanstring
-
-WHITESPACE = re.compile(r'[ \t\n\r]*', FLAGS)
-WHITESPACE_STR = ' \t\n\r'
-
-def JSONObject((s, end), encoding, strict, scan_once, object_hook, _w=WHITESPACE.match, _ws=WHITESPACE_STR):
-    pairs = {}
-    # Use a slice to prevent IndexError from being raised, the following
-    # check will raise a more specific ValueError if the string is empty
-    nextchar = s[end:end + 1]
-    # Normally we expect nextchar == '"'
-    if nextchar != '"':
-        if nextchar in _ws:
-            end = _w(s, end).end()
-            nextchar = s[end:end + 1]
-        # Trivial empty object
-        if nextchar == '}':
-            return pairs, end + 1
-        elif nextchar != '"':
-            raise ValueError(errmsg("Expecting property name", s, end))
-    end += 1
-    while True:
-        key, end = scanstring(s, end, encoding, strict)
-
-        # To skip some function call overhead we optimize the fast paths where
-        # the JSON key separator is ": " or just ":".
-        if s[end:end + 1] != ':':
-            end = _w(s, end).end()
-            if s[end:end + 1] != ':':
-                raise ValueError(errmsg("Expecting : delimiter", s, end))
-
-        end += 1
-
-        try:
-            if s[end] in _ws:
-                end += 1
-                if s[end] in _ws:
-                    end = _w(s, end + 1).end()
-        except IndexError:
-            pass
-
-        try:
-            value, end = scan_once(s, end)
-        except StopIteration:
-            raise ValueError(errmsg("Expecting object", s, end))
-        pairs[key] = value
-
-        try:
-            nextchar = s[end]
-            if nextchar in _ws:
-                end = _w(s, end + 1).end()
-                nextchar = s[end]
-        except IndexError:
-            nextchar = ''
-        end += 1
-
-        if nextchar == '}':
-            break
-        elif nextchar != ',':
-            raise ValueError(errmsg("Expecting , delimiter", s, end - 1))
-
-        try:
-            nextchar = s[end]
-            if nextchar in _ws:
-                end += 1
-                nextchar = s[end]
-                if nextchar in _ws:
-                    end = _w(s, end + 1).end()
-                    nextchar = s[end]
-        except IndexError:
-            nextchar = ''
-
-        end += 1
-        if nextchar != '"':
-            raise ValueError(errmsg("Expecting property name", s, end - 1))
-
-    if object_hook is not None:
-        pairs = object_hook(pairs)
-    return pairs, end
-
-def JSONArray((s, end), scan_once, _w=WHITESPACE.match, _ws=WHITESPACE_STR):
-    values = []
-    nextchar = s[end:end + 1]
-    if nextchar in _ws:
-        end = _w(s, end + 1).end()
-        nextchar = s[end:end + 1]
-    # Look-ahead for trivial empty array
-    if nextchar == ']':
-        return values, end + 1
-    _append = values.append
-    while True:
-        try:
-            value, end = scan_once(s, end)
-        except StopIteration:
-            raise ValueError(errmsg("Expecting object", s, end))
-        _append(value)
-        nextchar = s[end:end + 1]
-        if nextchar in _ws:
-            end = _w(s, end + 1).end()
-            nextchar = s[end:end + 1]
-        end += 1
-        if nextchar == ']':
-            break
-        elif nextchar != ',':
-            raise ValueError(errmsg("Expecting , delimiter", s, end))
-
-        try:
-            if s[end] in _ws:
-                end += 1
-                if s[end] in _ws:
-                    end = _w(s, end + 1).end()
-        except IndexError:
-            pass
-
-    return values, end
-
-class JSONDecoder(object):
-    """Simple JSON <http://json.org> decoder
-
-    Performs the following translations in decoding by default:
-
-    +---------------+-------------------+
-    | JSON          | Python            |
-    +===============+===================+
-    | object        | dict              |
-    +---------------+-------------------+
-    | array         | list              |
-    +---------------+-------------------+
-    | string        | unicode           |
-    +---------------+-------------------+
-    | number (int)  | int, long         |
-    +---------------+-------------------+
-    | number (real) | float             |
-    +---------------+-------------------+
-    | true          | True              |
-    +---------------+-------------------+
-    | false         | False             |
-    +---------------+-------------------+
-    | null          | None              |
-    +---------------+-------------------+
-
-    It also understands ``NaN``, ``Infinity``, and ``-Infinity`` as
-    their corresponding ``float`` values, which is outside the JSON spec.
-
-    """
-
-    def __init__(self, encoding=None, object_hook=None, parse_float=None,
-            parse_int=None, parse_constant=None, strict=True):
-        """``encoding`` determines the encoding used to interpret any ``str``
-        objects decoded by this instance (utf-8 by default).  It has no
-        effect when decoding ``unicode`` objects.
-
-        Note that currently only encodings that are a superset of ASCII work,
-        strings of other encodings should be passed in as ``unicode``.
-
-        ``object_hook``, if specified, will be called with the result
-        of every JSON object decoded and its return value will be used in
-        place of the given ``dict``.  This can be used to provide custom
-        deserializations (e.g. to support JSON-RPC class hinting).
-
-        ``parse_float``, if specified, will be called with the string
-        of every JSON float to be decoded. By default this is equivalent to
-        float(num_str). This can be used to use another datatype or parser
-        for JSON floats (e.g. decimal.Decimal).
-
-        ``parse_int``, if specified, will be called with the string
-        of every JSON int to be decoded. By default this is equivalent to
-        int(num_str). This can be used to use another datatype or parser
-        for JSON integers (e.g. float).
-
-        ``parse_constant``, if specified, will be called with one of the
-        following strings: -Infinity, Infinity, NaN.
-        This can be used to raise an exception if invalid JSON numbers
-        are encountered.
-
-        """
-        self.encoding = encoding
-        self.object_hook = object_hook
-        self.parse_float = parse_float or float
-        self.parse_int = parse_int or int
-        self.parse_constant = parse_constant or _CONSTANTS.__getitem__
-        self.strict = strict
-        self.parse_object = JSONObject
-        self.parse_array = JSONArray
-        self.parse_string = scanstring
-        self.scan_once = make_scanner(self)
-
-    def decode(self, s, _w=WHITESPACE.match):
-        """Return the Python representation of ``s`` (a ``str`` or ``unicode``
-        instance containing a JSON document)
-
-        """
-        obj, end = self.raw_decode(s, idx=_w(s, 0).end())
-        end = _w(s, end).end()
-        if end != len(s):
-            raise ValueError(errmsg("Extra data", s, end, len(s)))
-        return obj
-
-    def raw_decode(self, s, idx=0):
-        """Decode a JSON document from ``s`` (a ``str`` or ``unicode`` beginning
-        with a JSON document) and return a 2-tuple of the Python
-        representation and the index in ``s`` where the document ended.
-
-        This can be used to decode a JSON document from a string that may
-        have extraneous data at the end.
-
-        """
-        try:
-            obj, end = self.scan_once(s, idx)
-        except StopIteration:
-            raise ValueError("No JSON object could be decoded")
-        return obj, end
diff --git a/django/utils/simplejson/encoder.py b/django/utils/simplejson/encoder.py
deleted file mode 100644
index 06ebe62..0000000
--- a/django/utils/simplejson/encoder.py
+++ /dev/null
@@ -1,430 +0,0 @@
-"""Implementation of JSONEncoder
-"""
-import re
-
-c_encode_basestring_ascii = None
-c_make_encoder = None
-
-ESCAPE = re.compile(r'[\x00-\x1f\\"\b\f\n\r\t]')
-ESCAPE_ASCII = re.compile(r'([\\"]|[^\ -~])')
-HAS_UTF8 = re.compile(r'[\x80-\xff]')
-ESCAPE_DCT = {
-    '\\': '\\\\',
-    '"': '\\"',
-    '\b': '\\b',
-    '\f': '\\f',
-    '\n': '\\n',
-    '\r': '\\r',
-    '\t': '\\t',
-}
-for i in range(0x20):
-    ESCAPE_DCT.setdefault(chr(i), '\\u%04x' % (i,))
-
-# Assume this produces an infinity on all machines (probably not guaranteed)
-INFINITY = float('1e66666')
-FLOAT_REPR = repr
-
-def encode_basestring(s):
-    """Return a JSON representation of a Python string
-
-    """
-    def replace(match):
-        return ESCAPE_DCT[match.group(0)]
-    return '"' + ESCAPE.sub(replace, s) + '"'
-
-
-def py_encode_basestring_ascii(s):
-    """Return an ASCII-only JSON representation of a Python string
-
-    """
-    if isinstance(s, str) and HAS_UTF8.search(s) is not None:
-        s = s.decode('utf-8')
-    def replace(match):
-        s = match.group(0)
-        try:
-            return ESCAPE_DCT[s]
-        except KeyError:
-            n = ord(s)
-            if n < 0x10000:
-                return '\\u%04x' % (n,)
-            else:
-                # surrogate pair
-                n -= 0x10000
-                s1 = 0xd800 | ((n >> 10) & 0x3ff)
-                s2 = 0xdc00 | (n & 0x3ff)
-                return '\\u%04x\\u%04x' % (s1, s2)
-    return '"' + str(ESCAPE_ASCII.sub(replace, s)) + '"'
-
-
-encode_basestring_ascii = c_encode_basestring_ascii or py_encode_basestring_ascii
-
-class JSONEncoder(object):
-    """Extensible JSON <http://json.org> encoder for Python data structures.
-
-    Supports the following objects and types by default:
-
-    +-------------------+---------------+
-    | Python            | JSON          |
-    +===================+===============+
-    | dict              | object        |
-    +-------------------+---------------+
-    | list, tuple       | array         |
-    +-------------------+---------------+
-    | str, unicode      | string        |
-    +-------------------+---------------+
-    | int, long, float  | number        |
-    +-------------------+---------------+
-    | True              | true          |
-    +-------------------+---------------+
-    | False             | false         |
-    +-------------------+---------------+
-    | None              | null          |
-    +-------------------+---------------+
-
-    To extend this to recognize other objects, subclass and implement a
-    ``.default()`` method with another method that returns a serializable
-    object for ``o`` if possible, otherwise it should call the superclass
-    implementation (to raise ``TypeError``).
-
-    """
-    item_separator = ', '
-    key_separator = ': '
-    def __init__(self, skipkeys=False, ensure_ascii=True,
-            check_circular=True, allow_nan=True, sort_keys=False,
-            indent=None, separators=None, encoding='utf-8', default=None):
-        """Constructor for JSONEncoder, with sensible defaults.
-
-        If skipkeys is False, then it is a TypeError to attempt
-        encoding of keys that are not str, int, long, float or None.  If
-        skipkeys is True, such items are simply skipped.
-
-        If ensure_ascii is True, the output is guaranteed to be str
-        objects with all incoming unicode characters escaped.  If
-        ensure_ascii is false, the output will be unicode object.
-
-        If check_circular is True, then lists, dicts, and custom encoded
-        objects will be checked for circular references during encoding to
-        prevent an infinite recursion (which would cause an OverflowError).
-        Otherwise, no such check takes place.
-
-        If allow_nan is True, then NaN, Infinity, and -Infinity will be
-        encoded as such.  This behavior is not JSON specification compliant,
-        but is consistent with most JavaScript based encoders and decoders.
-        Otherwise, it will be a ValueError to encode such floats.
-
-        If sort_keys is True, then the output of dictionaries will be
-        sorted by key; this is useful for regression tests to ensure
-        that JSON serializations can be compared on a day-to-day basis.
-
-        If indent is a non-negative integer, then JSON array
-        elements and object members will be pretty-printed with that
-        indent level.  An indent level of 0 will only insert newlines.
-        None is the most compact representation.
-
-        If specified, separators should be a (item_separator, key_separator)
-        tuple.  The default is (', ', ': ').  To get the most compact JSON
-        representation you should specify (',', ':') to eliminate whitespace.
-
-        If specified, default is a function that gets called for objects
-        that can't otherwise be serialized.  It should return a JSON encodable
-        version of the object or raise a ``TypeError``.
-
-        If encoding is not None, then all input strings will be
-        transformed into unicode using that encoding prior to JSON-encoding.
-        The default is UTF-8.
-
-        """
-
-        self.skipkeys = skipkeys
-        self.ensure_ascii = ensure_ascii
-        self.check_circular = check_circular
-        self.allow_nan = allow_nan
-        self.sort_keys = sort_keys
-        self.indent = indent
-        if separators is not None:
-            self.item_separator, self.key_separator = separators
-        if default is not None:
-            self.default = default
-        self.encoding = encoding
-
-    def default(self, o):
-        """Implement this method in a subclass such that it returns
-        a serializable object for ``o``, or calls the base implementation
-        (to raise a ``TypeError``).
-
-        For example, to support arbitrary iterators, you could
-        implement default like this::
-
-            def default(self, o):
-                try:
-                    iterable = iter(o)
-                except TypeError:
-                    pass
-                else:
-                    return list(iterable)
-                return JSONEncoder.default(self, o)
-
-        """
-        raise TypeError("%r is not JSON serializable" % (o,))
-
-    def encode(self, o):
-        """Return a JSON string representation of a Python data structure.
-
-        >>> JSONEncoder().encode({"foo": ["bar", "baz"]})
-        '{"foo": ["bar", "baz"]}'
-
-        """
-        # This is for extremely simple cases and benchmarks.
-        if isinstance(o, basestring):
-            if isinstance(o, str):
-                _encoding = self.encoding
-                if (_encoding is not None
-                        and not (_encoding == 'utf-8')):
-                    o = o.decode(_encoding)
-            if self.ensure_ascii:
-                return encode_basestring_ascii(o)
-            else:
-                return encode_basestring(o)
-        # This doesn't pass the iterator directly to ''.join() because the
-        # exceptions aren't as detailed.  The list call should be roughly
-        # equivalent to the PySequence_Fast that ''.join() would do.
-        chunks = self.iterencode(o, _one_shot=True)
-        if not isinstance(chunks, (list, tuple)):
-            chunks = list(chunks)
-        return ''.join(chunks)
-
-    def iterencode(self, o, _one_shot=False):
-        """Encode the given object and yield each string
-        representation as available.
-
-        For example::
-
-            for chunk in JSONEncoder().iterencode(bigobject):
-                mysocket.write(chunk)
-
-        """
-        if self.check_circular:
-            markers = {}
-        else:
-            markers = None
-        if self.ensure_ascii:
-            _encoder = encode_basestring_ascii
-        else:
-            _encoder = encode_basestring
-        if self.encoding != 'utf-8':
-            def _encoder(o, _orig_encoder=_encoder, _encoding=self.encoding):
-                if isinstance(o, str):
-                    o = o.decode(_encoding)
-                return _orig_encoder(o)
-
-        def floatstr(o, allow_nan=self.allow_nan, _repr=FLOAT_REPR, _inf=INFINITY, _neginf=-INFINITY):
-            # Check for specials.  Note that this type of test is processor- and/or
-            # platform-specific, so do tests which don't depend on the internals.
-
-            if o != o:
-                text = 'NaN'
-            elif o == _inf:
-                text = 'Infinity'
-            elif o == _neginf:
-                text = '-Infinity'
-            else:
-                return _repr(o)
-
-            if not allow_nan:
-                raise ValueError("Out of range float values are not JSON compliant: %r"
-                    % (o,))
-
-            return text
-
-
-        if _one_shot and c_make_encoder is not None and not self.indent and not self.sort_keys:
-            _iterencode = c_make_encoder(
-                markers, self.default, _encoder, self.indent,
-                self.key_separator, self.item_separator, self.sort_keys,
-                self.skipkeys, self.allow_nan)
-        else:
-            _iterencode = _make_iterencode(
-                markers, self.default, _encoder, self.indent, floatstr,
-                self.key_separator, self.item_separator, self.sort_keys,
-                self.skipkeys, _one_shot)
-        return _iterencode(o, 0)
-
-def _make_iterencode(markers, _default, _encoder, _indent, _floatstr, _key_separator, _item_separator, _sort_keys, _skipkeys, _one_shot,
-        ## HACK: hand-optimized bytecode; turn globals into locals
-        False=False,
-        True=True,
-        ValueError=ValueError,
-        basestring=basestring,
-        dict=dict,
-        float=float,
-        id=id,
-        int=int,
-        isinstance=isinstance,
-        list=list,
-        long=long,
-        str=str,
-        tuple=tuple,
-    ):
-
-    def _iterencode_list(lst, _current_indent_level):
-        if not lst:
-            yield '[]'
-            return
-        if markers is not None:
-            markerid = id(lst)
-            if markerid in markers:
-                raise ValueError("Circular reference detected")
-            markers[markerid] = lst
-        buf = '['
-        if _indent is not None:
-            _current_indent_level += 1
-            newline_indent = '\n' + (' ' * (_indent * _current_indent_level))
-            separator = _item_separator + newline_indent
-            buf += newline_indent
-        else:
-            newline_indent = None
-            separator = _item_separator
-        first = True
-        for value in lst:
-            if first:
-                first = False
-            else:
-                buf = separator
-            if isinstance(value, basestring):
-                yield buf + _encoder(value)
-            elif value is None:
-                yield buf + 'null'
-            elif value is True:
-                yield buf + 'true'
-            elif value is False:
-                yield buf + 'false'
-            elif isinstance(value, (int, long)):
-                yield buf + str(value)
-            elif isinstance(value, float):
-                yield buf + _floatstr(value)
-            else:
-                yield buf
-                if isinstance(value, (list, tuple)):
-                    chunks = _iterencode_list(value, _current_indent_level)
-                elif isinstance(value, dict):
-                    chunks = _iterencode_dict(value, _current_indent_level)
-                else:
-                    chunks = _iterencode(value, _current_indent_level)
-                for chunk in chunks:
-                    yield chunk
-        if newline_indent is not None:
-            _current_indent_level -= 1
-            yield '\n' + (' ' * (_indent * _current_indent_level))
-        yield ']'
-        if markers is not None:
-            del markers[markerid]
-
-    def _iterencode_dict(dct, _current_indent_level):
-        if not dct:
-            yield '{}'
-            return
-        if markers is not None:
-            markerid = id(dct)
-            if markerid in markers:
-                raise ValueError("Circular reference detected")
-            markers[markerid] = dct
-        yield '{'
-        if _indent is not None:
-            _current_indent_level += 1
-            newline_indent = '\n' + (' ' * (_indent * _current_indent_level))
-            item_separator = _item_separator + newline_indent
-            yield newline_indent
-        else:
-            newline_indent = None
-            item_separator = _item_separator
-        first = True
-        if _sort_keys:
-            items = dct.items()
-            items.sort(key=lambda kv: kv[0])
-        else:
-            items = dct.iteritems()
-        for key, value in items:
-            if isinstance(key, basestring):
-                pass
-            # JavaScript is weakly typed for these, so it makes sense to
-            # also allow them.  Many encoders seem to do something like this.
-            elif isinstance(key, float):
-                key = _floatstr(key)
-            elif isinstance(key, (int, long)):
-                key = str(key)
-            elif key is True:
-                key = 'true'
-            elif key is False:
-                key = 'false'
-            elif key is None:
-                key = 'null'
-            elif _skipkeys:
-                continue
-            else:
-                raise TypeError("key %r is not a string" % (key,))
-            if first:
-                first = False
-            else:
-                yield item_separator
-            yield _encoder(key)
-            yield _key_separator
-            if isinstance(value, basestring):
-                yield _encoder(value)
-            elif value is None:
-                yield 'null'
-            elif value is True:
-                yield 'true'
-            elif value is False:
-                yield 'false'
-            elif isinstance(value, (int, long)):
-                yield str(value)
-            elif isinstance(value, float):
-                yield _floatstr(value)
-            else:
-                if isinstance(value, (list, tuple)):
-                    chunks = _iterencode_list(value, _current_indent_level)
-                elif isinstance(value, dict):
-                    chunks = _iterencode_dict(value, _current_indent_level)
-                else:
-                    chunks = _iterencode(value, _current_indent_level)
-                for chunk in chunks:
-                    yield chunk
-        if newline_indent is not None:
-            _current_indent_level -= 1
-            yield '\n' + (' ' * (_indent * _current_indent_level))
-        yield '}'
-        if markers is not None:
-            del markers[markerid]
-
-    def _iterencode(o, _current_indent_level):
-        if isinstance(o, basestring):
-            yield _encoder(o)
-        elif o is None:
-            yield 'null'
-        elif o is True:
-            yield 'true'
-        elif o is False:
-            yield 'false'
-        elif isinstance(o, (int, long)):
-            yield str(o)
-        elif isinstance(o, float):
-            yield _floatstr(o)
-        elif isinstance(o, (list, tuple)):
-            for chunk in _iterencode_list(o, _current_indent_level):
-                yield chunk
-        elif isinstance(o, dict):
-            for chunk in _iterencode_dict(o, _current_indent_level):
-                yield chunk
-        else:
-            if markers is not None:
-                markerid = id(o)
-                if markerid in markers:
-                    raise ValueError("Circular reference detected")
-                markers[markerid] = o
-            o = _default(o)
-            for chunk in _iterencode(o, _current_indent_level):
-                yield chunk
-            if markers is not None:
-                del markers[markerid]
-
-    return _iterencode
diff --git a/django/utils/simplejson/scanner.py b/django/utils/simplejson/scanner.py
deleted file mode 100644
index adbc6ec..0000000
--- a/django/utils/simplejson/scanner.py
+++ /dev/null
@@ -1,65 +0,0 @@
-"""JSON token scanner
-"""
-import re
-try:
-    from simplejson._speedups import make_scanner as c_make_scanner
-except ImportError:
-    c_make_scanner = None
-
-__all__ = ['make_scanner']
-
-NUMBER_RE = re.compile(
-    r'(-?(?:0|[1-9]\d*))(\.\d+)?([eE][-+]?\d+)?',
-    (re.VERBOSE | re.MULTILINE | re.DOTALL))
-
-def py_make_scanner(context):
-    parse_object = context.parse_object
-    parse_array = context.parse_array
-    parse_string = context.parse_string
-    match_number = NUMBER_RE.match
-    encoding = context.encoding
-    strict = context.strict
-    parse_float = context.parse_float
-    parse_int = context.parse_int
-    parse_constant = context.parse_constant
-    object_hook = context.object_hook
-
-    def _scan_once(string, idx):
-        try:
-            nextchar = string[idx]
-        except IndexError:
-            raise StopIteration
-
-        if nextchar == '"':
-            return parse_string(string, idx + 1, encoding, strict)
-        elif nextchar == '{':
-            return parse_object((string, idx + 1), encoding, strict, _scan_once, object_hook)
-        elif nextchar == '[':
-            return parse_array((string, idx + 1), _scan_once)
-        elif nextchar == 'n' and string[idx:idx + 4] == 'null':
-            return None, idx + 4
-        elif nextchar == 't' and string[idx:idx + 4] == 'true':
-            return True, idx + 4
-        elif nextchar == 'f' and string[idx:idx + 5] == 'false':
-            return False, idx + 5
-
-        m = match_number(string, idx)
-        if m is not None:
-            integer, frac, exp = m.groups()
-            if frac or exp:
-                res = parse_float(integer + (frac or '') + (exp or ''))
-            else:
-                res = parse_int(integer)
-            return res, m.end()
-        elif nextchar == 'N' and string[idx:idx + 3] == 'NaN':
-            return parse_constant('NaN'), idx + 3
-        elif nextchar == 'I' and string[idx:idx + 8] == 'Infinity':
-            return parse_constant('Infinity'), idx + 8
-        elif nextchar == '-' and string[idx:idx + 9] == '-Infinity':
-            return parse_constant('-Infinity'), idx + 9
-        else:
-            raise StopIteration
-
-    return _scan_once
-
-make_scanner = c_make_scanner or py_make_scanner
diff --git a/django/utils/simplejson/tool.py b/django/utils/simplejson/tool.py
deleted file mode 100644
index 74401c2..0000000
--- a/django/utils/simplejson/tool.py
+++ /dev/null
@@ -1,35 +0,0 @@
-r"""Using simplejson from the shell to validate and
-pretty-print::
-
-    $ echo '{"json":"obj"}' | python -msimplejson.tool
-    {
-        "json": "obj"
-    }
-    $ echo '{ 1.2:3.4}' | python -msimplejson.tool
-    Expecting property name: line 1 column 2 (char 2)
-"""
-from django.utils import simplejson
-
-def main():
-    import sys
-    if len(sys.argv) == 1:
-        infile = sys.stdin
-        outfile = sys.stdout
-    elif len(sys.argv) == 2:
-        infile = open(sys.argv[1], 'rb')
-        outfile = sys.stdout
-    elif len(sys.argv) == 3:
-        infile = open(sys.argv[1], 'rb')
-        outfile = open(sys.argv[2], 'wb')
-    else:
-        raise SystemExit("%s [infile [outfile]]" % (sys.argv[0],))
-    try:
-        obj = simplejson.load(infile)
-    except ValueError, e:
-        raise SystemExit(e)
-    simplejson.dump(obj, outfile, sort_keys=True, indent=4)
-    outfile.write('\n')
-
-
-if __name__ == '__main__':
-    main()
