[Python-ideas] The @update operator for dictionaries

[Jonathan Fine]

Chris Angelico suggested that
    a = a.update_with(b)
would be better than
    a @update= b

One of the key points of += is that
    parent.child['toy'].wheel[3].speed += 1
increases the speed that that wheel by 1, without having to write
    parent.child['toy'].wheel[3].speed = parent.child['toy'].wheel[3].speed + 1

To answer Chris's other points. It not me, but Chris and Steve who
want to bind dict.update to an operator, namely '+'. I'm suggested
that if you do that, why not call the operator 'update'.

Finally, we don't yet have any real idea how much difficulty the
grammar change would cause.

-- 
Jonathan