@Steven D'Aprano see that it doesn't actually have to look like a pair, it
doesn't need to be one at all. Just like in:
```python
def f(a):
...
f(x)
```
`x` is implicitly assigned with `a`, i.e. this is `x = a` under the hood and
there is no need to think of a key-value pair `x: a`. The same would go for the
discussed assignment of keyword args using the `*` separator syntax (which
seems more appealing to the ones in this thread than the original proposal):
```python
def f(a, b):
...
f(*, b, a)
```
The `*` would indicate that the following parameters are all keyword
parameters, where the order doesn't matter and, unless explicitly defined, each
passed parameter will be assigned to the argument with same name. So, under the
hood you get `a = a` and `b = b`. In this syntax one can choose whether or not
to explicitly defined the value of a keyword, so these statements would be
equivalent:
```python
f(positional, *, keyword0, keyword1=explicit, keyword2)
f(positional, keyword0=keyword0, keyword1=explicit, keyword2=keyword2)
```
I'm against subverting dictionary literals declaration to support implicit
pairs for the sake of readability. If that was the way we're going to implement
this feature than I make your point mine, something like this just looks like a
weird set not a dict:
```python
kw = {
,
x,
y,
}
f(**kw)
```
In Javascript ES6 they don't have sets built like python so `{}` always refers
to objects being constructed. It does indeed support implicit key: value pairs,
so in ES6 `{ a: a, b: x, c: c }` is equivalent to `{ a, b: x, c }`. This is
okay for Javascript users because they would not thought it as sets and the
only obvious assumption to make is that parameters are being implicitly
assigned to members. This is not the case in Python so I would refrain from
changing dictionary literals syntax.
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