def _printf(self, *args, **kwargs):
        '''Print to configured stream if any is specified and the file argument
        is not already set for this specific call.
        '''
        if self._stream and not kwargs.get('file'):
            kwargs['file'] = self._stream
        _printf(*args, **kwargs)
Print to configured stream if any is specified and the file argument
        is not already set for this specific call.