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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 rename(self, node):
 """ Renames given Node associated path. :param node: Node. :type node: ProjectNode or DirectoryNode or FileNode :return: Method success. :rtype: bool """


        source = node.path
        base_name, state = QInputDialog.getText(self, "Rename", "Enter your new name:", text=os.path.basename(source))
        if not state:
            return False

        base_name = foundations.strings.to_string(base_name)
        if base_name == os.path.basename(source):
            return False

        parent_directory = os.path.dirname(source)
        target = os.path.join(parent_directory, base_name)

        if self.__script_editor.model.is_authoring_node(node):
            if not foundations.common.path_exists(source):
                LOGGER.info("{0} | Renaming '{1}' untitled file to '{2}'!".format(
                    self.__class__.__name__, source, target))
                self.__set_authoring_nodes(source, target)
                return True

        if not base_name in os.listdir(parent_directory):
            if node.family == "File":
                LOGGER.info("{0} | Renaming '{1}' file to '{2}'!".format(self.__class__.__name__, source, target))
                self.__rename_file(source, target)
            elif node.family == "Directory":
                LOGGER.info("{0} | Renaming '{1}' directory to '{2}'!".format(self.__class__.__name__, source, target))
                self.__rename_directory(source, target)
            elif node.family == "Project":
                LOGGER.info("{0} | Renaming '{1}' project to '{2}'!".format(self.__class__.__name__, source, target))
                self.__rename_project(source, target)
        else:
            self.__raise_file_system_exception(base_name, parent_directory)

        return True