Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
Actually, `(a) = 42` doesn't contradict the grammar.
assignment_stmt ::= (target_list "=")+ (starred_expression | yield_expression)
target_list ::= target ("," target)* [","]
target ::= identifier
| "(" [target_list] ")"
| "[" [target_list] "]"
| attributeref
| subscription
| slicing
| "*" target
So that if we decide to disallow such things, we should change the definition
in the language reference.
I thought the code should be similar to the code added in issue34641. But maybe
there is a way to simplify both code.
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nosy: +benjamin.peterson
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<https://bugs.python.org/issue35207>
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