用python提取json文件中的嵌套项

我在用 IBM Watson 和 python3 把音频文件翻译成文本文件。它以JSON格式返回结果。得到的JSON是这样的…

{
"results": [
{
  "alternatives": [
    {
      "transcript": "Marcus white is the managing director of quartz power group an energy company ",
      "confidence": 0.85,
      "word_confidence": [
        [
          "Marcus",
          0.678
        ],
        [
          "white",
          0.99
        ],
        [
          "is",
          0.988
        ],
        [
          "the",
          1.0
        ],
        [
          "managing",
          1.0
        ],
        [
          "director",
          1.0
        ],
        [
          "of",
          1.0
        ],
        [
          "quartz",
          0.394
        ],
        [
          "power",
          0.737
        ],
        [
          "group",
          0.968
        ],
        [
          "an",
          0.783
        ],
        [
          "energy",
          0.989
        ],
        [
          "company",
          0.844
        ]
      ],
      "timestamps": [
        [
          "Marcus",
          12.28,
          12.78
        ],
        [
          "white",
          12.78,
          13.17
        ],
        [
          "is",
          13.17,
          13.33
        ],
        [
          "the",
          13.33,
          13.42
        ],
        [
          "managing",
          13.42,
          13.83
        ],
        [
          "director",
          13.83,
          14.39
        ],
        [
          "of",
          14.39,
          14.52
        ],
        [
          "quartz",
          14.52,
          15.0
        ],
        [
          "power",
          15.0,
          15.36
        ],
        [
          "group",
          15.36,
          15.79
        ],
        [
          "an",
          15.93,
          16.08
        ],
        [
          "energy",
          16.08,
          16.45
        ],
        [
          "company",
          16.45,
          16.95
        ]
      ]
    }
  ],
  "final": true
},
{
  "alternatives": [
    {
      "transcript": "every month the departmental manages meet to discuss high level issues in the company ",
      "confidence": 0.925,
      "word_confidence": [
        [
          "every",
          1.0
        ],
        [
          "month",
          0.993
        ],
        [
          "the",
          0.728
        ],
        [
          "departmental",
          1.0
        ],
        [
          "manages",
          0.7
        ],
        [
          "meet",
          0.77
        ],
        [
          "to",
          1.0
        ],
        [
          "discuss",
          1.0
        ],
        [
          "high",
          0.835
        ],
        [
          "level",
          0.984
        ],
        [
          "issues",
          1.0
        ],
        [
          "in",
          0.67
        ],
        [
          "the",
          0.927
        ],
        [
          "company",
          0.994
        ]
      ],
      "timestamps": [
        [
          "every",
          18.1,
          18.39
        ],
        [
          "month",
          18.39,
          18.93
        ],
        [
          "the",
          18.96,
          19.07
        ],
        [
          "departmental",
          19.07,
          19.73
        ],
        [
          "manages",
          19.73,
          20.29
        ],
        [
          "meet",
          20.29,
          20.56
        ],
        [
          "to",
          20.56,
          20.66
        ],
        [
          "discuss",
          20.66,
          21.12
        ],
        [
          "high",
          21.12,
          21.33
        ],
        [
          "level",
          21.33,
          21.64
        ],
        [
          "issues",
          21.64,
          22.08
        ],
        [
          "in",
          22.08,
          22.18
        ],
        [
          "the",
          22.18,
          22.27
        ],
        [
          "company",
          22.27,
          22.75
        ]
      ]
    }
  ],
  "final": true
},

对于每个已翻译的段,此格式将重复自身。我正在尝试提取所有的转录,这是 transcript .我试过这个:

index = 0

for [index]["transcript"] in ["results"][0]["alternatives"]:
    print (["results"][0]["alternatives"][index]["transcript"])
    index += 1

但这失败了,因为每个转录对象都嵌入到一个列表中。第一个转录值的完整路径是:

d["results"][0]["alternatives"][0]["transcript"]

如何迭代此列表以提取所有转录值并将其添加到字符串变量中?

干杯:)