Python 语法错误：没有机会
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Syntax Error: Not a Chance
提问by Anurag-Sharma
I tried executed the following code in the python IDLE
我尝试在 python IDLE 中执行以下代码
from __future__ import braces
And I got the following error:
我收到以下错误：
SyntaxError: not a chance
What does the above error mean?
上面的错误是什么意思？
采纳答案by Martijn Pieters
You have found an easter egg in Python. It is a joke.
您已经在 Python 中找到了一个复活节彩蛋。这是一个笑话。
It means that delimiting blocks by braces instead of indentation will never be implemented.
这意味着永远不会实现用大括号而不是缩进来分隔块。
Normally, imports from the special __future__moduleenable features that are backwards-incompatible, such as the print()function, or true division.
通常，从特殊__future__模块导入会启用向后不兼容的print()功能，例如函数或真正的除法。
So the line from __future__ import bracesis taken to mean you want to enable the 'create blocks with braces' feature, and the exception tells you your chances of that everhappening are nil.
因此，线from __future__ import braces被认为是指你要启用该功能“用括号来创建块”，异常告诉您那的机会不断发生的零。
You can add that to the long list of in-jokes included in Python, just like import __hello__, import thisand import antigravity. The Python developers have a well-developed sense of humour!
您可以将其添加到 Python 中包含的长长的笑话列表中，就像import __hello__、import this和 一样import antigravity。Python 开发者的幽默感非常发达！
回答by zhangyangyu
The __future__module is normally used to provide features from future versions of Python.
该__future__模块通常用于提供 Python 未来版本的功能。
This is an easter egg that summarizes its developers' feelings on this issue.
这是一个彩蛋，总结了开发者对这个问题的感受。
There are several more:
还有几个：
import thiswill display the zen of Python.
import this将展示 Python 之禅。
import __hello__will display Hello World....
import __hello__将显示Hello World....
In Python 2.7 and 3.0, import antigravitywill open the browser to a comic!
在 Python 2.7 和 3.0 中，import antigravity浏览器会打开一个漫画！
