Canonical conversion of dict of dicts to list of dicts

[Chris Angelico]

On Tue, Mar 30, 2021 at 10:41 PM Loris Bennett
<loris.bennett at fu-berlin.de> wrote:
>
> Hi,
>
> If I have dict of dicts, say
>
>   dod = {
>       "alice":
>       {
>           "lang": "python",
>           "level": "expert"
>       },
>       "bob":
>       {
>           "lang": "perl",
>           "level": "noob"
>       }
>   }
>
> is there a canonical, or more pythonic, way of converting the outer key
> to a value to get a list of dicts, e.g
>
>   lod = [
>       {
>           "name": "alice",
>           "lang": "python",
>           "level": "expert"
>       },
>       {
>           "name": "bob",
>           "lang": "perl",
>           "level": "noob"
>       }
>   ]
>
> than just
>
>   lod = []
>   for name in dod:
>       d = dod[name]
>       d["name"] = name
>       lod.append(d)
>
> ?
>

I dunno about "canonical", but here's how I'd do it:

lod = [info | {"name": name} for name, info in dod.items()]

You could use {"name":name}|info instead if you prefer to have the
name show up first in the dictionary.

ChrisA