def extend(self, pattern, recursive = False, file_only = False):
        """
            subclass the extend method to handle wildcards, recursing
            and file filter. 
        """
        # expand any wildcards, recurse if asked, filter on files, etc.
        temp = self._populate(pattern, recursive, file_only)
        # then extend.
        super(FSList, self).extend(temp)

            subclass the extend method to handle wildcards, recursing
            and file filter. 
        
recipes/Python/259147_FSList/recipe-259147.py