parameters: (self, skipkeys=False, ensure_ascii=True,
              check_circular=True, allow_nan=True, sort_keys=False,
              indent=None, separators=None, encoding='utf-8', default=None,
              use_decimal=True, namedtuple_as_object=True,
              tuple_as_array=True, bigint_as_string=False,
              item_sort_key=None, for_json=False, ignore_nan=False)
docstring: 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 string, then JSON array elements and object members
          will be pretty-printed with a newline followed by that string repeated
          for each level of nesting. ``None`` (the default) selects the most compact
          representation without any newlines. For backwards compatibility with
          versions of simplejson earlier than 2.1.0, an integer is also accepted
          and is converted to a string with that many spaces.
  
          If specified, separators should be an (item_separator, key_separator)
          tuple.  The default is (', ', ': ') if *indent* is ``None`` and
          (',', ': ') otherwise.  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.
  
          If use_decimal is true (not the default), ``decimal.Decimal`` will
          be supported directly by the encoder. For the inverse, decode JSON
          with ``parse_float=decimal.Decimal``.
  
          If namedtuple_as_object is true (the default), objects with
          ``_asdict()`` methods will be encoded as JSON objects.
  
          If tuple_as_array is true (the default), tuple (and subclasses) will
          be encoded as JSON arrays.
  
          If bigint_as_string is true (not the default), ints 2**53 and higher
          or lower than -2**53 will be encoded as strings. This is to avoid the
          rounding that happens in Javascript otherwise.
  
          If specified, item_sort_key is a callable used to sort the items in
          each dictionary. This is useful if you want to sort items other than
          in alphabetical order by key.
  
          If for_json is true (not the default), objects with a ``for_json()``
          method will use the return value of that method for encoding as JSON
          instead of the object.
  
          If *ignore_nan* is true (default: ``False``), then out of range
          :class:`float` values (``nan``, ``inf``, ``-inf``) will be serialized
          as ``null`` in compliance with the ECMA-262 specification. If true,
          this will override *allow_nan*.
docstring_summary: Constructor for JSONEncoder, with sensible defaults.
docstring_tokens: Constructor for JSONEncoder with sensible defaults .
function: 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,
              use_decimal=True, namedtuple_as_object=True,
              tuple_as_array=True, bigint_as_string=False,
              item_sort_key=None, for_json=False, ignore_nan=False):
          """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 string, then JSON array elements and object members
          will be pretty-printed with a newline followed by that string repeated
          for each level of nesting. ``None`` (the default) selects the most compact
          representation without any newlines. For backwards compatibility with
          versions of simplejson earlier than 2.1.0, an integer is also accepted
          and is converted to a string with that many spaces.
  
          If specified, separators should be an (item_separator, key_separator)
          tuple.  The default is (', ', ': ') if *indent* is ``None`` and
          (',', ': ') otherwise.  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.
  
          If use_decimal is true (not the default), ``decimal.Decimal`` will
          be supported directly by the encoder. For the inverse, decode JSON
          with ``parse_float=decimal.Decimal``.
  
          If namedtuple_as_object is true (the default), objects with
          ``_asdict()`` methods will be encoded as JSON objects.
  
          If tuple_as_array is true (the default), tuple (and subclasses) will
          be encoded as JSON arrays.
  
          If bigint_as_string is true (not the default), ints 2**53 and higher
          or lower than -2**53 will be encoded as strings. This is to avoid the
          rounding that happens in Javascript otherwise.
  
          If specified, item_sort_key is a callable used to sort the items in
          each dictionary. This is useful if you want to sort items other than
          in alphabetical order by key.
  
          If for_json is true (not the default), objects with a ``for_json()``
          method will use the return value of that method for encoding as JSON
          instead of the object.
  
          If *ignore_nan* is true (default: ``False``), then out of range
          :class:`float` values (``nan``, ``inf``, ``-inf``) will be serialized
          as ``null`` in compliance with the ECMA-262 specification. If true,
          this will override *allow_nan*.
  
          """
  
          self.skipkeys = skipkeys
          self.ensure_ascii = ensure_ascii
          self.check_circular = check_circular
          self.allow_nan = allow_nan
          self.sort_keys = sort_keys
          self.use_decimal = use_decimal
          self.namedtuple_as_object = namedtuple_as_object
          self.tuple_as_array = tuple_as_array
          self.bigint_as_string = bigint_as_string
          self.item_sort_key = item_sort_key
          self.for_json = for_json
          self.ignore_nan = ignore_nan
          if indent is not None and not isinstance(indent, string_types):
              indent = indent * ' '
          self.indent = indent
          if separators is not None:
              self.item_separator, self.key_separator = separators
          elif indent is not None:
              self.item_separator = ','
          if default is not None:
              self.default = default
          self.encoding = encoding
function_tokens: 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 , use_decimal = True , namedtuple_as_object = True , tuple_as_array = True , bigint_as_string = False , item_sort_key = None , for_json = False , ignore_nan = False ) : self . skipkeys = skipkeys self . ensure_ascii = ensure_ascii self . check_circular = check_circular self . allow_nan = allow_nan self . sort_keys = sort_keys self . use_decimal = use_decimal self . namedtuple_as_object = namedtuple_as_object self . tuple_as_array = tuple_as_array self . bigint_as_string = bigint_as_string self . item_sort_key = item_sort_key self . for_json = for_json self . ignore_nan = ignore_nan if indent is not None and not isinstance ( indent , string_types ) : indent = indent * ' ' self . indent = indent if separators is not None : self . item_separator , self . key_separator = separators elif indent is not None : self . item_separator = ',' if default is not None : self . default = default self . encoding = encoding