[rraval]

Since you're using Python for your example, it's worth mentioning that 3.5 extended the unpacking syntax [1] to sort of do what you want.

    foo = {
        'a': 1,
        'b': 2,
        **({
            'c': 3,
            'd': 4,
        } if bar else {}),
    }

This adds `c: 3` and `d: 4` into `foo` conditional on `bar`.

[1] https://docs.python.org/3/whatsnew/3.5.html#pep-448-addition...

[rtpg]

oh, this is most definitely a thing I want. Not sure if my coworkers would appreciate this however. Would still have liked a bit of a simpler syntax for inclusion but this could be worth the ugliness

Nice that this works on lists as well.

[rraval]

Yeah, I personally find this sort of syntax convolution ugly and hard to read but I thought it relevant. Enough rope to hang yourself with and whatnot.