python 如何合并两个 json 文件 - V2EX
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wico77
V2EX    Python

python 如何合并两个 json 文件

  •  
  •   wico77 Feb 10, 2015 19851 views
    This topic created in 4108 days ago, the information mentioned may be changed or developed.

    RT
    不是合并两个普通文件。是json文件,合并后成为一个大的json文件

    13 replies    2015-02-11 17:13:46 +08:00
    kslr
        1
    kslr  
       Feb 10, 2015 via Android
    Load dict
    Kilerd
        2
    Kilerd  
       Feb 11, 2015 via Android
    先转成两个dict,然后合并,再转成json
    ricorico
        3
    ricorico  
       Feb 11, 2015 via iPad
    先 read,然后 json.loads,之后调用 dict 的 update 方法合并?
    要考虑有没有相同的 key,不知道具体要求…
    wico77
        4
    wico77  
    OP
       Feb 11, 2015
    @ricorico
    import glob
    import json

    files = glob.glob('*.json')
    result = []
    for file in files:
    f = open(file,'r')
    a = json.load(f)
    for b in a:
    result.append(b)

    print len(result)

    outfile = json.dumps(result)

    这样对吗
    NeoAtlantis
        5
    NeoAtlantis  
       Feb 11, 2015   1
    怎么合并……json不一定是dict的形式,也可以一开始就是list呢,也可以就是字符串或者Boolean或者数字呢……看你要求了,不过一般来说用json那个库应该能搞定。
    NeoAtlantis
        6
    NeoAtlantis  
       Feb 11, 2015


    以上都是合法的json内容
    icedx
        7
    icedx  
       Feb 11, 2015
    @ricorico 正解
    Septembers
        8
    Septembers  
       Feb 11, 2015
    import json
    json.dump(open('target.json'), [json.load(open('source1.json')), json.load(open('source2.json'))])
    Septembers
        9
    Septembers  
       Feb 11, 2015   1
    import json
    json.dump([json.load(open('source1.json')), json.load(open('source2.json'))], open('target.json'))
    invite
        10
    invite  
       Feb 11, 2015
    要哪种合并?有一种合并是这样的:
    两个文件a和b,内容为 A 和 B,那么合并后:

    {'a': A , 'b': B}

    多快好省,哈哈。
    leiz
        11
    leiz  
       Feb 11, 2015
    完全没有上下文的问题为什么会有这么多人回答?
    fanta
        12
    fanta  
       Feb 11, 2015
    import ast
    ast.literal_eval(json)
    wico77
        13
    wico77  
    OP
       Feb 11, 2015
    @Septembers 这个就是我想要的。谢谢
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