On 27 May 2016 at 18:42, Steven D'Aprano <steve@pearwood.info> wrote:
On Fri, May 27, 2016 at 05:42:44PM +0100, Paul Moore wrote:
- Any other functionality?
Nested unpacking:
location = = { 'name': 'The north pole', 'position': { 'x': 0, 'y': 0 }} location_name, x, y = location.getvalues('name', 'position.x', 'position.y')
How do you distinguish between a key 'position.x' and a key 'position' with a dict with a key 'x'?
Nested unpacking seems too Javascripty for my liking.
Good point. The problem is that *without* handling nested unpacking (and in particular, the error checking needed - what if location['position'] isn't a dict? I'd like a uniform error I can trap or report on) I don't see any practical advantage over location_name = location['name'] x = location['position']['x'] y = location['position']['y'] So let's turn the question round. What advantages does the getvalues() proposal have over the above sequence of assignments? I'm genuinely no longer sure. Paul