Issue 13729: Evaluation order for dics key/value (original) (raw)
Hello, following up http://mail.python.org/pipermail/docs/2011-December/006782.html , I'm opening this issue to have others confirmation of what's happening:
echo -e "def ev(r):\n print(r)\n return r\n\n{ev(1): ev(2), ev(3): ev(4)}" | ./python 2 1 4 3
(this applies for 2.7/3.2/default) so it seems the value expressions are evaluated before the key expressions, so the
{expr1: expr2, expr3: expr4}
in http://docs.python.org/reference/expressions.html#evaluation-order has to be updated in
{expr2: expr1, expr4: expr3}
Is that correct/can someone confirm this is the expected behavior?