let's say I have this list of nested dicts:

[
{ "some_key": {'a':1, 'b':2}},
{ "some_other_key": {'a':3, 'b':4}}
]

I need to turn this into:

[
{ "value": "some_key", 'a':1, 'b':2},
{ "value": "some_other_key", 'a':3, 'b':4}
]

I actually did it with:

listOfDescriptors = list()
for cd in origListOfDescriptors:
cn = list(cd.keys())[0] # There must be a better way than this!
listOfDescriptors.append({
"value": cn,
"type": cd[cn]["a"],
"description": cd[cn]["b"]
})

and it works, but I look at this and think that there must be a better
way. Am I missing something obvious?

PS: Screw OpenAPI!

Dino

--- SoupGate-Win32 v1.05
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On 1/20/23 07:29, Dino wrote:

let's say I have this list of nested dicts:

[
  { "some_key": {'a':1, 'b':2}},
  { "some_other_key": {'a':3, 'b':4}}
]

I need to turn this into:

[
  { "value": "some_key", 'a':1, 'b':2},
  { "value": "some_other_key", 'a':3, 'b':4}
]

This doesn't look like the program output you're getting.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Dino <dino@no.spam.ar> writes:

cn = list(cd.keys())[0] # There must be a better way than this!

d = { 'a': 1 }
one_and_only = d.popitem()
print( one_and_only[ 0 ])

|a

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 1/20/2023 11:06 AM, Tobiah wrote:

On 1/20/23 07:29, Dino wrote:

This doesn't look like the program output you're getting.

you are right that I tweaked the name of fields and variables manually
(forgot a couple of places, my bad) to illustrate the problem more
generally, but hopefully you get the spirit.

"value": cn,
"a": cd[cn]["a"],
"b": cd[cn]["b"]

Anyway, the key point (ooops, a pun) is if there's a more elegant way to
do this (i.e. get a reference to the unique key in a dict() when the key
is unknown):

cn = list(cd.keys())[0] # There must be a better way than this!

Thanks

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 2023-01-20, Dino <dino@no.spam.ar> wrote:

let's say I have this list of nested dicts:

[
{ "some_key": {'a':1, 'b':2}},
{ "some_other_key": {'a':3, 'b':4}}
]

I need to turn this into:

[
{ "value": "some_key", 'a':1, 'b':2},
{ "value": "some_other_key", 'a':3, 'b':4}
]

[{"value": key, **value} for d in input_data for key, value in d.items()]

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Fri, 20 Jan 2023 at 17:30, Dino <dino@no.spam.ar> wrote:

let's say I have this list of nested dicts:

[
{ "some_key": {'a':1, 'b':2}},
{ "some_other_key": {'a':3, 'b':4}}
]

I need to turn this into:

[
{ "value": "some_key", 'a':1, 'b':2},
{ "value": "some_other_key", 'a':3, 'b':4}
]

You want both the key and the value so you can use items():

In [39]: L = [
...: { "some_key": {'a':1, 'b':2}},
...: { "some_other_key": {'a':3, 'b':4}}
...: ]

In [40]: [{"value": k, **m} for l in L for k, m in l.items()]
Out[40]:
[{'value': 'some_key', 'a': 1, 'b': 2},
{'value': 'some_other_key', 'a': 3, 'b': 4}]

--
Oscar

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 20/01/2023 15:29, Dino wrote:

let's say I have this list of nested dicts:

[
  { "some_key": {'a':1, 'b':2}},
  { "some_other_key": {'a':3, 'b':4}}
]

I need to turn this into:

[
  { "value": "some_key", 'a':1, 'b':2},
  { "value": "some_other_key", 'a':3, 'b':4}
]

Assuming that I believe the above, rather than the code below, this works:

listOfDescriptors = [
    { **  (L := list(D.items())[0])[1], **{'value' : L[0] } }
    for D in origListOfDescriptors]

I believe that from Python 3.9 onwards this can be written more
concisely as:

listOfDescriptors = [
    { (L := list(D.items())[0])[1] } | {'value' : L[0] }
    for D in origListOfDescriptors]     # untested

Best wishes
Rob Cliffe

I actually did it with:

listOfDescriptors = list()
for cd in origListOfDescriptors:
    cn = list(cd.keys())[0] # There must be a better way than this!
    listOfDescriptors.append({
        "value": cn,
        "type": cd[cn]["a"],
        "description": cd[cn]["b"]
    })

and it works, but I look at this and think that there must be a better
way. Am I missing something obvious?

PS: Screw OpenAPI!

Dino

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

I learned new things today and I thank you all for your responses.

Please consider yourself thanked individually.

Dino

On 1/20/2023 10:29 AM, Dino wrote:

let's say I have this list of nested dicts:

--- SoupGate-Win32 v1.05
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