Parses the input data and converts it into a Python data structure
        Input data might be:
            * a path which points to a JSON file
            * a URL which points to a JSON file
              (supported schemes: http, https, telnet)
            * a JSON formatted string
            * a dict representing a JSON structure

def to_python(self, data):
        """
        Parses the input data and converts it into a Python data structure
        Input data might be:
            * a path which points to a JSON file
            * a URL which points to a JSON file
              (supported schemes: http, https, telnet)
            * a JSON formatted string
            * a dict representing a JSON structure
        """
        if isinstance(data, dict):
            return data
        elif isinstance(data, six.string_types):
            # assuming is JSON
            try:
                return json.loads(data)
            except ValueError:
                pass
        raise ConversionException('Could not recognize format', data=data)