def item_enclosure_length(self, item):
        """
        Try to obtain the size of the enclosure if it's present on the FS,
        otherwise returns an hardcoded value.
        Note: this method is only called if item_enclosure_url
        has returned something.
        """
        try:
            return str(item.image.size)
        except (AttributeError, ValueError, os.error):
            pass
        return '100000'
Try to obtain the size of the enclosure if it's present on the FS,
        otherwise returns an hardcoded value.
        Note: this method is only called if item_enclosure_url
        has returned something.