[issue40631] PEG Parser: Cannot used starred expression in parenthesised expr

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

Honestly this seems like a bug in 3.8 to me (if it indeed behaves like this):

>>> (*x), y
(1, 2, 3)

Every time I mistakenly tried (*x) I really meant (*x,), so it's surprising that (*x), y would be interpreted as (*x, y) rather than flagging (*x) as an error.

Please don't "fix" this even if it is a regression.

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