Extending the original idea, IMHO it would make sense for the dict constructor to create a new dictionary not only from several mappings, but mixing mappings and iterables too.

Consider this example:

x = [(1, 'one')]
y = {2: 'two'}

Now: {**dict(x), **y}
Proposed: dict(x, y)

I think this extension makes the call ostensibly easier to read and grep. I believe we are safe regarding compatibility issues, right?

What do you guys think?

On Wed, Apr 11, 2018 at 4:44 AM, Mike Miller <python-ideas@mgmiller.net> wrote:

Ok, we can haggle the finer details and I admit once you learn the syntax it isn't substantially harder. Simply, I've found the dict() a bit easier to mentally parse at a glance. Also, to add I've always expected multiple args to work with it, and am always surprised when it doesn't.

Would never have thought of this unpacking syntax if I didn't know that's the way its done now, but often have to think about it for a second or two.

On 2018-04-10 22:22, Chris Angelico wrote:

On Wed, Apr 11, 2018 at 2:44 PM, Steven D'Aprano <steve@pearwood.info> wrote:

On Wed, Apr 11, 2018 at 02:22:08PM +1000, Chris Angelico wrote:

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