Batuhan Taskaya <[email protected]> added the comment:
Due to the precedence of the walrus operator, it is not actually a multiple
assignment but rather a tuple of 3 elements with one being the value of the
assignment expression.
$ python -m ast
(a, b := 3, 4)
Module(
body=[
Expr(
value=Tuple(
elts=[
Name(id='a', ctx=Load()),
NamedExpr(
target=Name(id='b', ctx=Store()),
value=Constant(value=3)),
Constant(value=4)],
ctx=Load()))],
type_ignores=[])
In this case, it creates a tuple with loading the name `a` from the current
scope, using the value of the 3 and also assigning 3 to the b, and loading
constant 4.
So basically (a, b := 3, 4) is actually (a, (b := 3), 4)
----------
nosy: +BTaskaya
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Python tracker <[email protected]>
<https://bugs.python.org/issue42295>
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