That PR seems to make \' and \" not special in general right?

I think this is a more limited proposal, to only change the behavior when \ is at the end of a string, so the only behavior difference would never receiving the error "SyntaxError: EOL while scanning string literal"

In which case there should be no backwards compatibility issue.

Damian

On Sat, May 28, 2022 at 12:20 PM Serhiy Storchaka <storchaka@gmail.com> wrote:

28.05.22 12:22, Steven D'Aprano пише:
> Now that we have a new parser for CPython, can we fix the old gotcha
> that raw strings cannot end in a backslash?
>
> Its an FAQ and has come up again on the bug tracker.
>
> https://docs.python.org/3/faq/design.html#id26
>
> https://github.com/python/cpython/issues/93314

I do not think that we can allow this, and it is not related to parser.

Few years ago I experimented with such change:
https://github.com/python/cpython/pull/15217

You can see that it breaks even some stdlib code, and it will definitely
break many third-party packages and examples. Technically we can do
this, but the benefit is small in comparison with the cost.

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