我无法遍历嵌套字典

Question

I have following nested dictionary

nested_dictionary = {
      "api": {
        "results": 4,
        "leagues": {
          "22": {
            "league_id": "22",
            "name": "Ligue 1",
            "country": "France",
            "season": "2017",
            "season_start": "2017-08-04",
            "season_end": "2018-05-19",
            "logo": "https://www.api-football.com/public/leagues/22.svg",
            "standings": True
          },
          "24": {
            "league_id": "24",
            "name": "Ligue 2",
            "country": "France",
            "season": "2017",
            "season_start": "2017-07-28",
            "season_end": "2018-05-11",
            "logo": "https://www.api-football.com/public/leagues/24.png",
            "standings": True
          },
          "157": {
            "league_id": "157",
            "name": "National",
            "country": "France",
            "season": "2017",
            "season_start": "2017-08-04",
            "season_end": "2018-05-11",
            "logo": "https://www.api-football.com/public/leagues/157.png",
            "standings": True
          },
          "206": {
            "league_id": "206",
            "name": "Feminine Division 1",
            "country": "France",
            "season": "2017",
            "season_start": "2017-09-03",
            "season_end": "2018-05-27",
            "logo": "https://www.api-football.com/public/leagues/206.png",
            "standings": True
          }
        }
      }
    }

i convert it to iterable with following code

dict_to_iterable = iter(nested_dictionary)

Now i am trying to iter it with following code

print(next(dict_to_iterable))
print(next(dict_to_iterable)) 

First statement return api but second give in console StopIteration. What i am doing wrong. Please help me

Answer 1

nested_dictionary is having only one key ie "api" .

If you were expecting to iterate over something else, you need to modify your code.

Answer 2

You can create a function that check each item of a dictionary and if that item is not another dictionary then it can print the result. If the item is another dictionary then you can repeat the function for this layer.

def iterate_dictionary(d):
    for key in d.keys():
        # check if each item is dictionary
        if str(type(d[key])) == "<class 'dict'>":
            iterate_dictionary(d[key])
        else:
            print (key, d[key])

nested_dictionary = {
      "api": {
        "results": 4,
        "leagues": {
          "22": {
            "league_id": "22",
            "name": "Ligue 1",
            "country": "France",
            "season": "2017",
            "season_start": "2017-08-04",
            "season_end": "2018-05-19",
            "logo": "https://www.api-football.com/public/leagues/22.svg",
            "standings": True
          },
          "24": {
            "league_id": "24",
            "name": "Ligue 2",
            "country": "France",
            "season": "2017",
            "season_start": "2017-07-28",
            "season_end": "2018-05-11",
            "logo": "https://www.api-football.com/public/leagues/24.png",
            "standings": True
          },
          "157": {
            "league_id": "157",
            "name": "National",
            "country": "France",
            "season": "2017",
            "season_start": "2017-08-04",
            "season_end": "2018-05-11",
            "logo": "https://www.api-football.com/public/leagues/157.png",
            "standings": True
          },
          "206": {
            "league_id": "206",
            "name": "Feminine Division 1",
            "country": "France",
            "season": "2017",
            "season_start": "2017-09-03",
            "season_end": "2018-05-27",
            "logo": "https://www.api-football.com/public/leagues/206.png",
            "standings": True
          }
        }
      }
    }


iterate_dictionary(nested_dictionary)

This outputs:

results 4
league_id 22
name Ligue 1
country France
season 2017
season_start 2017-08-04
season_end 2018-05-19
logo https://www.api-football.com/public/leagues/22.svg
standings True
league_id 24
name Ligue 2
country France
season 2017
season_start 2017-07-28
season_end 2018-05-11
logo https://www.api-football.com/public/leagues/24.png
standings True
league_id 157
name National
country France
season 2017
season_start 2017-08-04
season_end 2018-05-11
logo https://www.api-football.com/public/leagues/157.png
standings True
league_id 206
name Feminine Division 1
country France
season 2017
season_start 2017-09-03
season_end 2018-05-27
logo https://www.api-football.com/public/leagues/206.png
standings True