title: I can not to iterate through nested dictionary
body: <p>I have following nested dictionary </p>
  
  <pre><code>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
            }
          }
        }
      }
  </code></pre>
  
  <p>i convert it to iterable with following code </p>
  
  <pre><code>dict_to_iterable = iter(nested_dictionary)
  </code></pre>
  
  <p>Now i am trying to iter it with following code </p>
  
  <pre><code>print(next(dict_to_iterable))
  print(next(dict_to_iterable)) 
  </code></pre>
  
  <p>First statement return api but second give in console StopIteration. What i am doing wrong. Please help me   </p>