parenthesized 'a if b else c' in dict

[Akuli]

Examples in the current Black style This code looks terrible, but is unchanged by black:

if blah:
    if blah:
        if blah:
            blah = blah_blah_blah_blah_blah_blah_blah_blah_blah_blah_blah % {
                "blah_blah_blah": "a"
                if blah_blah_blah_blah_blah_blah_blah_blah_blah
                else "b"
            }

Desired style If I add parentheses before "a" and after "b", black converts it to this good-looking code:

if blah:
    if blah:
        if blah:
            blah = blah_blah_blah_blah_blah_blah_blah_blah_blah_blah_blah % {
                "blah_blah_blah": (
                    "a" if blah_blah_blah_blah_blah_blah_blah_blah_blah else "b"
                )
            }

It would be nice if black would always do this, regardless of whether the original code contains parentheses or not.

Additional context None

[JelleZijlstra]

I agree, a PR would be welcome.

[felix-hilden]

I believe this is the same proposal as #620, which has more discussion. So I'll close this issue in favor of it!