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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def save_widget(cls, editor):
 """ Implements SplittableTabWidget.save_widget to actually save the code editor widget. If the editor.file.path is None or empty or the file does not exist, a save as dialog is shown (save as). :param editor: editor widget to save. :return: False if there was a problem saving the editor (e.g. the save """

        if editor.original:
            editor = editor.original
        if editor.file.path is None or not os.path.exists(editor.file.path):
            # save as
            path, filter = cls._ask_path(editor)
            if not path:
                return False
            if not os.path.splitext(path)[1]:
                if len(editor.mimetypes):
                    path += mimetypes.guess_extension(editor.mimetypes[0])
            try:
                _logger().debug('saving %r as %r', editor.file._old_path, path)
            except AttributeError:
                _logger().debug('saving %r as %r', editor.file.path, path)
            editor.file._path = path
        else:
            path = editor.file.path
        try:
            editor.file.save(path)
        except Exception as e:
            QtWidgets.QMessageBox.warning(editor, "Failed to save file", 'Failed to save %r.\n\nError="%s"' %
                                          (path, e))
        else:
            tw = editor.parent_tab_widget
            text = tw.tabText(tw.indexOf(editor)).replace('*', '')
            tw.setTabText(tw.indexOf(editor), text)
            for clone in [editor] + editor.clones:
                if clone != editor:
                    tw = clone.parent_tab_widget
                    tw.setTabText(tw.indexOf(clone), text)
        return True