谢谢大家.正如@sberry 建议的那样，该路径存在多个问题.我发现 netbeans 默认为 jpython，这是一个较旧的 2.5 版本.它也可以使用标准的python 2.7.1，当我使用它时，一切都是幸福的

Thanks to all. The path had more than a few issues, as @sberry suggested. I found that netbeans defaults to jpython, which is an older 2.5 version. It also can use the standard python 2.7.1, and when I use that, all is happyness and joy

非常感谢.