[issue41652] An Advice on Turning Ellipsis into Keyword

[Josh Rosenberg]

Josh Rosenberg  added the comment:

I'm closing this as not being worth the costs of adding new keywords. You're 
welcome to propose it on the python-ideas list (a more appropriate place to 
propose and suss out the details of significant language changes), but you'll 
need to formulate a much stronger reason for making this change.

--
resolution:  -> rejected
stage:  -> resolved
status: open -> closed

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[issue41652] An Advice on Turning Ellipsis into Keyword

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

There is Ellipsis class in the ast module. Although it is deprecated now. But I 
there may be Ellipsis names also in third-party libraries. Making Ellipsis a 
keyword would break them.

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nosy: +serhiy.storchaka

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[issue41652] An Advice on Turning Ellipsis into Keyword

[Josh Rosenberg]

Josh Rosenberg  added the comment:

You can do the same thing to replace int, float, dict, len, and all the other 
built-in classes and functions. Why is Ellipsis so special that it needs 
protection, especially when, as you note, ... is an available unoverrideable 
way to refer to it? Making new keywords is a high bar (because it can break 
existing code). What justifies this one beyond "don't want folks to mess with a 
barely used name"?

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nosy: +josh.r

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[issue41652] An Advice on Turning Ellipsis into Keyword

[Alex]

New submission from Alex <2423067...@qq.com>:

In early versions of python,  programmers can simply swap True and False by
>>> True, False = False, True
Then True and False and None become keywords so programmers can't change their 
value.
... is also a keyword, but Ellipsis is not. So the code below is right:

>>> Ellipsis = 1
>>> print(Ellipsis)
1

If Ellipsis become a keyword, this will be better.

--
components: Interpreter Core
messages: 376018
nosy: Alex-Python-Programmer
priority: normal
severity: normal
status: open
title: An Advice on Turning Ellipsis into Keyword
type: enhancement
versions: Python 3.8

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