On Wed, Feb 27, 2019 at 8:50 AM Rhodri James <rhodri@kynesim.co.uk> wrote:
On 27/02/2019 16:25, João Matos wrote:
> I would like to propose that instead of using this (applies to Py3.5 and upwards)
> dict_a = {**dict_a, **dict_b}
> we could use
> dict_a = dict_a + dict_b
> or even better
> dict_a += dict_b

While I don't object to the idea of concatenating dictionaries, I feel
obliged to point out that this last is currently spelled

This is likely to be controversial. But I like the idea. After all, we have `list.extend(x)` ~~ `list += x`. The key conundrum that needs to be solved is what to do for `d1 + d2` when there are overlapping keys. I propose to make d2 win in this case, which is what happens in `d1.update(d2)` anyways. If you want it the other way, simply write `d2 + d1`.

--Guido van Rossum (python.org/~guido)