New submission from Joshua Oreman <orem...@gmail.com>:
On Python 3.9.0 with the new PEG parser, the following statement produces a
SyntaxError:
with contextlib.nullcontext(range(1, 5)) as (first, *rest, last):
print(first, rest, last)
On 3.8.x, or 3.9.0 with -X oldparser, it succeeds and prints "1 [2, 3] 4" as
expected.
As I understand it, the thing after 'as' is an assignment target and should
accept anything that can go on the LHS of an equals sign.
----------
components: Interpreter Core
messages: 378305
nosy: Joshua Oreman
priority: normal
severity: normal
status: open
title: PEG parser doesn't accept extended unpacking in with statement
versions: Python 3.9
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue41979>
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