text: r"""A simple, fast, extensible JSON encoder and decoder
  
  JSON (JavaScript Object Notation) <http://json.org> is a subset of
  JavaScript syntax (ECMA-262 3rd edition) used as a lightweight data
  interchange format.
  
  json exposes an API familiar to uses of the standard library
  marshal and pickle modules.
  
  Encoding basic Python object hierarchies::
  
      >>> import 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 json
      >>> json.dumps([1,2,3,{'4': 5, '6': 7}], separators=(',',':'))
      '[1,2,3,{"4":5,"6":7}]'
  
  Pretty printing (using repr() because of extraneous whitespace in the output)::
  
      >>> import json
      >>> print repr(json.dumps({'4': 5, '6': 7}, sort_keys=True, indent=4))
      '{\n    "4": 5, \n    "6": 7\n}'
  
  Decoding JSON::
  
      >>> import json
      >>> json.loads('["foo", {"bar":["baz", null, 1.0, 2]}]')
      [u'foo', {u'bar': [u'baz', None, 1.0, 2]}]
      >>> json.loads('"\\"foo\\bar"')
      u'"foo\x08ar'
      >>> from StringIO import StringIO
      >>> io = StringIO('["streaming API"]')
      >>> json.load(io)
      [u'streaming API']
  
  Specializing JSON object decoding::
  
      >>> import 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('1.1')
  
  Extending JSONEncoder::
  
      >>> import json
      >>> class ComplexEncoder(json.JSONEncoder):
      ...     def default(self, obj):
      ...         if isinstance(obj, complex):
      ...             return [obj.real, obj.imag]
      ...         return json.JSONEncoder.default(self, obj)
      ...
      >>> dumps(2 + 1j, cls=ComplexEncoder)
      '[2.0, 1.0]'
      >>> ComplexEncoder().encode(2 + 1j)
      '[2.0, 1.0]'
      >>> list(ComplexEncoder().iterencode(2 + 1j))
      ['[', '2.0', ', ', '1.0', ']']
  
  
  Using json.tool from the shell to validate and
  pretty-print::
  
      $ echo '{"json":"obj"}' | python -mjson.tool
      {
          "json": "obj"
      }
      $ echo '{ 1.2:3.4}' | python -mjson.tool
      Expecting property name: line 1 column 2 (char 2)
  
  Note that the JSON produced by this module's default settings
  is a subset of YAML, so it may be used as a serializer for that as well.
  
  """
  
  __version__ = '1.9'
  __all__ = [
      'dump', 'dumps', 'load', 'loads',
      'JSONDecoder', 'JSONEncoder',
  ]
  
  __author__ = 'Bob Ippolito <bob@redivi.com>'
  
  from .decoder import JSONDecoder
  from .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)
  