38016226...@gmail.com writes: > L=[2,1] > L[0],L[L[0]-1]=L[L[0]-1],L[0] > > The L doesn't change. Can someone provide me the detail procedure of > this expression?
The right-hand side evaluates to (1,2), but then the assignments to the targets on the left-hand side are processed in order from left to right. This happens: L[0] = 1 L[L0] - 1] = 2 https://docs.python.org/3/reference/simple_stmts.html#assignment-statements -- https://mail.python.org/mailman/listinfo/python-list
