除了“None"之外，Python 中还有什么是“NoneType"的吗? [英] Is there anything in Python that is a `NoneType` besides `None`?

问题描述

我只是想知道在 Python 中，除了众所周知的 None 之外，是否还有其他类型为 NoneType 类型的对象/实例:

<预><代码>>>>类型(无)<输入'NoneType'>

所以...这很清楚，但我想知道是否还有 anything 也是 NoneType

<预><代码>>>>类型(???)<输入'NoneType'>

不用说，这只是出于好奇和学习目的:-)

提前致谢.

解决方案

来自文档，None 是:

<块引用>

NoneType 类型的唯一值.

I was just wondering if in Python there's any other object/instance whose type is NoneType type besides the very well known None:

>>> type(None)
<type 'NoneType'>

So... This is very clear, but I was wondering whether there's anything else that is also of NoneType

>>> type(???)
<type 'NoneType'>

Needless to say, this is just for curiosity sake and learning purposes :-)

Thank you in advance.

解决方案

From the docs, None is:

The sole value of the type NoneType.

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