'ShowFile: FileSpec containing data of specified MIME type to be rendered in window specified by Window Identifier.
Required argument: The file
Keyword argument MIME_Type: MIME type
Keyword argument Window_Identifier: Identifier of the target window for the URL. (Can use -1 for top window)
Keyword argument URL: URL that allows this document to be reloaded.
Keyword argument _attributes: AppleEvent attribute dictionary'

def ShowFile(self, _object, _attributes={}, **_arguments):

    _code = 'WWW!'
    _subcode = 'SHWF'
    aetools.keysubst(_arguments, self._argmap_ShowFile)
    _arguments['----'] = _object
    (_reply, _arguments, _attributes) = self.send(_code, _subcode, _arguments, _attributes)
    if _arguments.get('errn', 0):
        raise aetools.Error, aetools.decodeerror(_arguments)
    if _arguments.has_key('----'):
        return _arguments['----']
