[issue42895] Return multi-line list concatenation without parentheses returns only first operand

JD-Veiga added the comment: What a shame. I forget that + is also a unary operator. That produces a new logical line with correct identation though never executed. Sorry for the inconvenience.⁶ -- ___ Python tracker

[issue42895] Return multi-line list concatenation without parentheses returns only first operand

Steven D'Aprano added the comment: As Guido says, a full explanation will have to to a user-forum such as https://discuss.python.org/c/users/7 but consider this example and see if it gives you insight: def demo(): x = 1 return ( x - 1 ) print("This is not

[issue42895] Return multi-line list concatenation without parentheses returns only first operand

Guido van Rossum added the comment: This is not a bug -- it is how it's supposed to work (for better or for worse). Please see a use forum to help you understand what's going on here. -- nosy: +gvanrossum resolution: -> not a bug stage: -> resolved status: open -> closed

[issue42895] Return multi-line list concatenation without parentheses returns only first operand

New submission from JD-Veiga : I was trying to return the concatenation of several lists from a function but, inadvertently, forgot to surround the multi-line concatenation expression with parentheses. As a result, the function returns just the first operand and does not perform the