__init__(self,
        encoding=None,
        object_hook=None,
        parse_float=None,
        parse_int=None,
        parse_constant=None,
        strict=True)
     (Constructor)
  
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  ``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, null, true, false. This can 
  be used to raise an exception if invalid JSON numbers are 
  encountered. 
  
    - Overrides:
        object.__init__
    
 
   
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