def parent(self):
        '''
        Get parent node if available based on app config's directory_base.

        :returns: parent object if available
        :rtype: Node instance or None
        '''
        if check_path(self.path, self.app.config['directory_base']):
            return None
        parent = os.path.dirname(self.path) if self.path else None
        return self.directory_class(parent, self.app) if parent else None
def parent ( self ) : if check_path ( self . path , self . app . config [ 'directory_base' ] ) : return None parent = os . path . dirname ( self . path ) if self . path else None return self . directory_class ( parent , self . app ) if parent else None
Get parent node if available based on app config's directory_base.

        :returns: parent object if available
        :rtype: Node instance or None