On 11 October 2016 at 23:50, אלעזר <elazarg@gmail.com> wrote:
I thought about it a lot recently. Specifically on your proposal, and in general. Unpacking expression can have a much more uniform treatment in the language, as an expression with special "bare tuple" type - like tuple, but "without the braces".
That's a recipe for much deeper confusion, as it would make "*expr" and "*expr," semantically identical
*range(3), (0, 1, 2)
As things stand, the above makes tuple expansion the same as any other expression: you need a comma to actually make it a tuple. If you allow a bare "*" to imply the trailing comma, then it immediately becomes confusing when you actually *do* have a comma present, as the "*" no longer implies a new tuple, it gets absorbed into the surrounding one. That's outright backwards incompatible with the status quo once you take parentheses into account: >>> (*range(3)), (0, 1, 2) Regards, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia