def unload(self, seq=None):
        if seq is None:
            seq = self._handlers.keys()
        for path in seq:
            _logger.debug('Tries to unload GUI package "%s"', path)
            if path in self._handlers:
                handlers = self._handlers.pop(path)
                for handler in handlers:
                    handler.fini()

            aliases = self._aliases.pop(path, None)
            if aliases:
                g_entitiesFactories.clearSettings(aliases)
            contextMenuTypes = self._contextMenuTypes.pop(path, None)
            if contextMenuTypes:
                context_menu.unregisterHandlers(*contextMenuTypes)

        return
    def unload(self, seq=None):
        if seq is None:
            seq = self._handlers.keys()
        isLoaded = self.isPackageLoaded
        clearSettings = g_entitiesFactories.clearSettings
        for path in seq:
            if not isLoaded(path):
                continue
            LOG_DEBUG('Tries to unload GUI package', path)
            handlers = self._handlers.pop(path)
            for handler in handlers:
                handler.fini()

            aliases = self._aliases.pop(path)
            if aliases:
                clearSettings(aliases)
            contextMenuTypes = self._contextMenuTypes.pop(path)
            if contextMenuTypes:
                context_menu.unregisterHandlers(*contextMenuTypes)

        return