Returns the parts that are used for this system.
        
        :return     [<str>, ..]

def parts( self ):
        """
        Returns the parts that are used for this system.
        
        :return     [<str>, ..]
        """
        path = nativestring(self.text()).strip(self.separator())
        if ( not path ):
            return []
        return path.split(self.separator())