如何在python中将键添加到列表并转换为json答案

【问题标题】：how to add keys to list and convert to json in python如何在python中将键添加到列表并转换为json
【发布时间】：2019-06-28 21:52:03
【问题描述】：

我已经尝试this 将列表列表转换为 json。但无法转换为正确的 json 格式。

我的数据是

    data= [['India',
          'India runs mentorship driven incubation.',
          '/7e9e130075d3bfcd9e0.png'],
         ['Capital',
          'develops high growth and market-defining India-centric Software and Services Big Data and Analytics and Consumer Mobile or Internet markets.',
          '/data/images/512bc5a2937.png']]

    titles = ['Country','description','logo']

    values = [e for g in grouper(3, data) for e in g]
keys = (titles[i%3] for i in xrange(len(values)))

objs = [dict(g) for g in grouper(3, list(izip(keys, values)))]
print(objs)

结果：

[{'Country': ['India', 'India runs mentorship driven incubation.', '/7e9e130075d3bfcd9e0.png'], 'description': ['Capital', 'develops high growth and market-defining India-centric Software and Services Big Data and Analytics and Consumer Mobile or Internet markets.', '/data/images/512bc5a2937.png']}]

但预期的结果应该是这种形式。

[{'Country': 'India', 'description': 'India runs mentorship driven incubation.', 'logo': '/7e9e130075d3bfcd9e0.png'}]

应该是什么原因？

【问题讨论】：

标签： python-3.x

【解决方案1】：

您可以使用单行列表推导式。首先，遍历数据，对于每条数据（entry），zip 它和titles 来创建一个可以转换成字典的元组的可迭代对象：

data= [['India',
      'India runs mentorship driven incubation.',
      '/7e9e130075d3bfcd9e0.png'],
     ['Capital',
      'develops high growth and market-defining India-centric Software and Services Big Data and Analytics and Consumer Mobile or Internet markets.',
      '/data/images/512bc5a2937.png']]

titles = ['Country','description','logo']

result = [dict(zip(titles, entry)) for entry in data]
print(result)

输出：

[{'Country': 'India',
  'description': 'India runs mentorship driven incubation.',
  'logo': '/7e9e130075d3bfcd9e0.png'},
 {'Country': 'Capital',
  'description': 'develops high growth and market-defining India-centric Software and Services Big Data and Analytics and Consumer Mobile or Internet markets.',
  'logo': '/data/images/512bc5a2937.png'}]

【讨论】：