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pythonでjsonの配列にアクセスする

Posted at

pythonでjsonの配列にアクセスする時のメモ

jsonファイル

test.json
{
    "section1":{
        "key":"key1",
        "number": [ 
                    ["a", "b"],
                    ["c", "d"],
                    ["e", "f"]
                  ]
    },

    "section2":{
        "key":"key2",
        "number": 2
    }
}

pythonファイル

test.py
import json

json_open = open('test.json', 'r')
json_load = json.load(json_open)

print(json_load)
print(json_load["section1"]["number"][0])
print(json_load["section1"]["number"][1])
print(json_load["section1"]["number"][2])
print(json_load["section1"]["number"][0][0])
print(json_load["section1"]["number"][0][1])

実行

$ python test.py
{'section1': {'key': 'key1', 'number': [['a', 'b'], ['c', 'd'], ['e', 'f']]}, 'section2': {'key': 'key2', 'number': 2}}
['a', 'b']
['c', 'd']
['e', 'f']
a
b

参考

非エンジニアのためのJSON入門

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