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[3.12] gh-111944: Add assignment expression parentheses requirements (GH-111977) #112010

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Nov 13, 2023
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[3.12] gh-111944: Add assignment expression parentheses requirements (GH-111977) #112010

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9 changes: 5 additions & 4 deletions Doc/reference/expressions.rst
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Expand Up @@ -1774,10 +1774,11 @@ Or, when processing a file stream in chunks:
while chunk := file.read(9000):
process(chunk)

Assignment expressions must be surrounded by parentheses when used
as sub-expressions in slicing, conditional, lambda,
keyword-argument, and comprehension-if expressions
and in ``assert`` and ``with`` statements.
Assignment expressions must be surrounded by parentheses when
used as expression statements and when used as sub-expressions in
slicing, conditional, lambda,
keyword-argument, and comprehension-if expressions and
in ``assert``, ``with``, and ``assignment`` statements.
In all other places where they can be used, parentheses are not required,
including in ``if`` and ``while`` statements.

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