On 12/3/19 2:41 PM, Christian Heimes wrote:
On 03/12/2019 19.09, Barry Warsaw wrote:
On Dec 3, 2019, at 09:16, Serhiy Storchaka <storch...@gmail.com>
wrote:
The 'u" string literal prefix was removed in 3.0 and reintroduced
in 3.3 to help writing the code compatible with Python 2 and 3
[1]. After the dead of Python 2.7 we will remove some deprecated
features kept for compatibility with 2.7. When we are going to
deprecate and remove the "u" prefix?
I think removing or even deprecating it will cause unnecessary code
churn in third party libraries, for very little value. Let’s just
call it a wart until Python 4000.
I'm 100% with Barry. We can certainly document the "u" string prefix
as deprecated. I'm strongly against removing it from Python 3 or even
raising a deprecation warning. Let's leave it to linters and maybe
consider deprecation for Python 4. Or maybe not.
Yes, please, please, don't remove this prefix. It will cause needless
churn, and force people to revisit code that works just fine. We should
try to keep old code working unless there is a clear benefit in making a
breaking change. I haven't heard a benefit to removing this prefix.
"We added it just to help people migrate" is not a reason to remove it now.
--Ned.
Christian
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