使用 python 3 将 CSV 转换为 JSON

Question

我有一个这样的csv文件，没有标题，数据格式如下：

{"article_id":724465,"title":"Addition of Aripiprazole Ups Major Depressive Disorder Remission","posting_time":1499934606065,"archive_date":"11-Jul-2018","short_desc":"Small increased likelihood of remission at 12 weeks in patients with major depressive disorder","article_type":"Journal","article_body":[{"article_desc":"WEDNESDAY, July 12, 2017 (HealthDay News) -- For patients with major depressive disorder (MDD), augmentation with aripiprazole is associated with an increased likelihood of remission, according to a study published in the July 11 issue of the Journal of the American Medical Association. \n\n Somaia Mohamed, M.D., Ph.D., from the VA Connecticut Healthcare System in West Haven, and colleagues examined the relative effectiveness and safety of three treatments for MDD in patients unresponsive to at least one antidepressant course. Patients were randomly assigned to switch to a different antidepressant, bupropion (switch group, 511 patients); augment current treatment with bupropion (augment-bupropion group, 506 patients); or augment with an atypical antipsychotic, aripiprazole (augment-aripiprazole group, 505 patients) for 12 weeks and up to 36 weeks (acute treatment and continuous phases). \n\n The researchers found that at 12 weeks, the remission rates were 22.3, 26.9, and 28.9 percent for the switch, augment-bupropion, and augment-aripiprazole groups; the augment-aripiprazole group exceeded the switch group in remission (relative risk, 1.3). The augment-aripiprazole group had greater response compared with the switch or augment-bupropion groups (74.3 versus 62.4 percent [relative risk, 1.19] and 65.6 percent [relative risk, 1.13], respectively). There were no significant treatment differences for relapse. The bupropion groups had more anxiety (24.3, 22.5, and 16.6 percent in the switch, augment-bupropion, and augment-aripiprazole groups, respectively). \n\n Given the small effect size and adverse effects associated with aripiprazole, further analysis including cost-effectiveness is needed to understand the net utility of this approach, the authors write. \n\n Several authors disclosed financial ties to pharmaceutical companies, including Bristol-Myers Squibb, which provided aripiprazole for use in the study.","links":[{"link_name":"Abstract/Full Text (subscription or payment may be required)","link_url":"http://jamanetwork.com/journals/jama/article-abstract/2643308"},{"link_name":"Editorial (subscription or payment may be required)","link_url":"http://jamanetwork.com/journals/jama/article-abstract/2643294"}]}],"long_desc":"For patients with major depressive disorder, augmentation with aripiprazole is associated with an increased likelihood of remission, according to a study published in the July 11 issue of the Journal of the American Medical Association.","content_url":"http://jamanetwork.com/journals/jama/article-abstract/2643294","large_image":"https://s3-ap-southeast-1.amazonaws.com/ebiz-env-qa/content/healthday/article-images/original/24ca07f28e0db094d35038ab62df7ac5?AWSAccessKeyId=AKIAI5RP6RWRC7U5V54A&Expires=1798705806&Signature=JgcWiK1lnRnhqTDUtS%2BS9mp%2BVUI%3D","medium_image":"https://s3-ap-southeast-1.amazonaws.com/ebiz-env-qa/content/healthday/article-images/medium/24ca07f28e0db094d35038ab62df7ac5?AWSAccessKeyId=AKIAI5RP6RWRC7U5V54A&Expires=1798705806&Signature=BLZKa1YPV86ZigzxJsSx9hEchm8%3D","small_image":"https://s3-ap-southeast-1.amazonaws.com/ebiz-env-qa/content/healthday/article-images/small/24ca07f28e0db094d35038ab62df7ac5?AWSAccessKeyId=AKIAI5RP6RWRC7U5V54A&Expires=1798705806&Signature=pgnNhk12ijVV9EqmN9fRFqgatxU%3D","micro_image":"http://s3-ap-southeast-1.amazonaws.com/ebiz-env-qa/content/healthday/article-images/micro/health-day-micro.png","copyright":"http://www.healthday.com/","topics":["Depression","Prescription Drugs"],"speciality":["Acupuncture","Ayurveda","Family Medicine","Homeopathy","Nutrition","Occupational Therapy","Yoga","Other","Internal Medicine","Geriatrics","Epidemology","General Medicine","Transfusion Medicine","Nursing","Pharmacology","Psychiatry","Psychology","Sexology"]}

其中每条记录都在 csv 文件的单个单元格中，并且前面的单元格为空。

csvfile = open('Article_Data.csv', 'r')
jsonfile = open('file.json', 'w')

reader = csv.DictReader(csvfile)
for row in reader:
    json.dump(row, jsonfile,indent=4)

它显示错误。所以有什么想法吗？ csv 中的每条记录都是一个字典。

输出应该是这样的：

{
    "article_id": 724465,
    "title": "Addition of Aripiprazole Ups Major Depressive Disorder Remission",
    "posting_time": 1499934606065,
    "archive_date": "11-Jul-2018",
    "short_desc": "Small increased likelihood of remission at 12 weeks in patients with major depressive disorder",
    "article_type": "Journal",
    "article_body": [
        {
            "article_desc": "WEDNESDAY, July 12, 2017 (HealthDay News) -- For patients with major depressive disorder (MDD), augmentation with aripiprazole is associated with an increased likelihood of remission, according to a study published in the July 11 issue of the Journal of the American Medical Association. \n\n Somaia Mohamed, M.D., Ph.D., from the VA Connecticut Healthcare System in West Haven, and colleagues examined the relative effectiveness and safety of three treatments for MDD in patients unresponsive to at least one antidepressant course. Patients were randomly assigned to switch to a different antidepressant, bupropion (switch group, 511 patients); augment current treatment with bupropion (augment-bupropion group, 506 patients); or augment with an atypical antipsychotic, aripiprazole (augment-aripiprazole group, 505 patients) for 12 weeks and up to 36 weeks (acute treatment and continuous phases). \n\n The researchers found that at 12 weeks, the remission rates were 22.3, 26.9, and 28.9 percent for the switch, augment-bupropion, and augment-aripiprazole groups; the augment-aripiprazole group exceeded the switch group in remission (relative risk, 1.3). The augment-aripiprazole group had greater response compared with the switch or augment-bupropion groups (74.3 versus 62.4 percent [relative risk, 1.19] and 65.6 percent [relative risk, 1.13], respectively). There were no significant treatment differences for relapse. The bupropion groups had more anxiety (24.3, 22.5, and 16.6 percent in the switch, augment-bupropion, and augment-aripiprazole groups, respectively). \n\n Given the small effect size and adverse effects associated with aripiprazole, further analysis including cost-effectiveness is needed to understand the net utility of this approach, the authors write. \n\n Several authors disclosed financial ties to pharmaceutical companies, including Bristol-Myers Squibb, which provided aripiprazole for use in the study.",
            "links": [
                {
                    "link_name": "Abstract/Full Text (subscription or payment may be required)",
                    "link_url": "http://jamanetwork.com/journals/jama/article-abstract/2643308"
                },
                {
                    "link_name": "Editorial (subscription or payment may be required)",
                    "link_url": "http://jamanetwork.com/journals/jama/article-abstract/2643294"
                }
            ]
        }
    ]
}

我可以为一条记录执行此操作，但无法为 csv 中的多条记录执行此操作。

error with program

错误是，第一行被复制了n次，显示不是json格式。

Answer 1

我猜这就是你的 csv 基于 cmets 的样子：

, {"some_json": "some_value"}
, {"another_json": "another_value"}

此代码忽略每行中的第一个空单元格，解析 json，将其漂亮地打印到文件中。

import csv
import json

with open('test.csv', 'r') as rf:
    reader = csv.reader(rf)
    with open('file.json', 'w') as wf:
        all_data = [json.loads(x[1]) for x in reader]
        wf.write(json.dumps(all_data, indent=4))

file.json 的内容：

[
    {
        "some_json": "some_value"
    },
    {
        "another_json": "another_value"
    }
]

Answer 2

你想漂亮地打印文件Article_Data.csv中的json。
文件名具有误导性，它不是 `CSV.

Python » 文档：JSON encoder and decoder
漂亮的印刷：

>>> import json
>>> my_json_dict = json.load(open('Article_Data.csv'))
>>> print json.dumps(my_json_dict, sort_keys=True,
               indent=4, separators=(',', ': '))
{
    "article_id": 724465,
    "title": "Addition of Aripiprazole Ups Major Depressive Disorder Remission",
    "posting_time": 1499934606065,
... omited for brevity