What is the most efficient way to calculate the index of an element in a nested structure?

Question

Python

Here is the structure

my_list = {"groups":[
  {
    "descr":"3 светильника из профиля Люкс",
    "zones":[
      {
        "id":"2dd1fd73-7ed5-41be-90f3-2ff904f7b600",
        "descr":"Профиль 4970, 4-х рядная лента, управление."
      }
    ],
    "id":"93145ca7-f284-46d2-98ed-ad187ad3b996"
  },
  {
    "descr":"6, жилая комната",
    "zones":[
      {
        "id":"f0621e80-ecc9-4148-a689-c7c36e416ce0",
        "descr":"Лента, блок"
      },
      {
        "id":"083721b6-a8b7-470a-8162-6399e0cd90e2",
        "descr":"Лента,блок"
      }
    ],
    "id":"de1b4ad5-6f07-473b-88bc-fe2f93cfbafb"
  },
  {
    "descr":"5,жилая комната",
    "zones":[
      {
        "id":"3441ef59-bf85-4303-a4cc-6105cdf4cf9a",
        "descr":"Лента,блок"
      }
    ],
    "id":"b6d76ada-2c40-45bb-8ad6-295a579aad9e"
  },
  {
    "descr":"4,жилая комната",
    "zones":[
      {
        "id":"c4973844-76c4-479f-a5ac-1298e5dd6259",
        "descr":"Лента,блок"
      },
      {
        "id":"2068c560-2255-4487-bf5c-0904b830227f",
        "descr":"Лента,блок"
      }
    ],
    "id":"24a8fb7e-68ac-42f5-8217-b9315a407535"
  }
]
}

For example, I need to find the index of an element with a specific ID and with a specific parent ID.

Then the solution is like this:

for row in my_list['groups']:
    if row['id'] == 'de1b4ad5-6f07-473b-88bc-fe2f93cfbafb':
        for i, item in enumerate(row['zones']):
            if item['id'] == '083721b6-a8b7-470a-8162-6399e0cd90e2':
                print('index=', i)

Is there a way to do it better?

Answer 1

nested-lookup
or
recursion

Answer 2

If you build a data structure once, and then run a series of such queries on it, it may make sense to loop through the entire structure and build a dictionary of the following kind.
Key: tuple (parent_id, element_id)
Value: element data
Then, when querying, it will be possible to construct the same tuple, and then check its presence in the dictionary or retrieve the element from the dictionary.