从列表中提取整个 Python 字典并导出到 csv [重复]答案

【问题标题】：Extract an entire Python dictionary from a list and export to csv [duplicate]从列表中提取整个 Python 字典并导出到 csv [重复]
【发布时间】：2018-11-18 12:39:42
【问题描述】：

我在 Python 的列表中嵌入了一个字典。我想只提取字典，然后将其导出到 csv 文件，每列代表一个唯一的字典键（即日期）。例如，这是我拥有的嵌入式字典的（小 sn-p）：

[[{'Date': '2018-069', 'Title': 'The Effect of Common Ownership on Profits : Evidence From the U.S. Banking Industry', 'Author': 'Jacob P. Gramlich & Serafin J. Grundl'}, {'Date': '2018-068', 'Title': 'The Long and Short of It : Do Public and Private Firms Invest Differently?', 'Author': 'Naomi E. Feldman & Laura Kawano & Elena Patel & Nirupama Rao & Michael Stevens & Jesse Edgerton'}]]

对此的任何帮助将不胜感激！

【问题讨论】：

l[0][0] ?然后将其转换为 csv

标签： python dictionary

【解决方案1】：

应该像下面这样使用DictWriter，正如 Patrick 在 cmets 中提到的那样

import csv


def main():
    '''The Main'''

    data = [[{'Date': '2018-069', 'Title': 'The Effect of Common Ownership on Profits : Evidence From the U.S. Banking Industry', 'Author': 'Jacob P. Gramlich & Serafin J. Grundl'}, {'Date': '2018-068', 'Title': 'The Long and Short of It : Do Public and Private Firms Invest Differently?', 'Author': 'Naomi E. Feldman & Laura Kawano & Elena Patel & Nirupama Rao & Michael Stevens & Jesse Edgerton'}]]
    with open('sample.csv', 'w', newline='') as csvfile:
        fieldnames = data[0][0].keys()
        writer = csv.DictWriter(csvfile, fieldnames=fieldnames)

        writer.writeheader()
        for row in data[0]:
            writer.writerow(row)


if __name__ == '__main__':
    main()

【讨论】：