Json Python：删除[]字符，并添加新行

我能够成功地将csv转换为json。我还试图将数据上传到ElasticSearch，因此格式略有不同，这就是为什么我需要将其转换为不同类型的json格式

因此，我试图从json文件中删除开头和结尾“[”和“]”

此外，我正在尝试为数据行的每一行插入“{”索引“{}”

创建新的线条，就像漂亮的印花一样

数据：

id,team_name,team_members
123,"Biology, Neurobiology ","Ali Smith, Jon Doe"
234,Mathematics,Jane Smith 
345,"Statistics, Probability","Matt P, Albert Shaw"
456,Chemistry,"Andrew M, Matt Shaw, Ali Smith"
678,Physics,"Joe Doe, Jane Smith, Ali Smith "

代码：

import csv
import sys
import json

#EDIT THIS LIST WITH YOUR REQUIRED JSON KEY NAMES
fieldnames=["id","team_name","team_members"]

def convert(filename):
 csv_filename = filename[0]
 print "Opening CSV file: ",csv_filename
 f=open(csv_filename, 'r')
 next(f) #skip the headers
 csv_reader = csv.DictReader(f,fieldnames)
 json_filename = csv_filename.split(".")[0]+".json"
 print "Saving JSON to file: ",json_filename
 jsonf = open(json_filename,'w')
 data = json.dumps([r for r in csv_reader])
 jsonf.write(data)
 f.close()
 jsonf.close()

if __name__=="__main__":
 convert(sys.argv[1:])

 # How to run?: python csvtojsonfile.py myCSVfile.csv

电流输出：

[{"team_name": "Biology, Neurobiology ", "team_members": "Ali Smith, Jon Doe", "id": "123"}, {"team_name": "Mathematics", "team_members": "Jane Smith ", "id": "234"}, {"team_name": "Statistics, Probability", "team_members": "Matt P, Albert Shaw", "id": "345"}, {"team_name": "Chemistry", "team_members": "Andrew M, Matt Shaw, Ali Smith", "id": "456"}, {"team_name": "Physics", "team_members": "Joe Doe, Jane Smith, Ali Smith ", "id": "678"}]

所需的最终产出：

{"index" : {}}
{"team_name": "Biology, Neurobiology ", "team_members": "Ali Smith, Jon Doe", "id": "123"}
{"index" : {}}
{"team_name": "Mathematics", "team_members": "Jane Smith ", "id": "234"}
{"index" : {}}
{"team_name": "Statistics, Probability", "team_members": "Matt P, Albert Shaw", "id": "345"}
{"index" : {}}
{"team_name": "Chemistry", "team_members": "Andrew M, Matt Shaw, Ali Smith", "id": "456"}
{"index" : {}}
{"team_name": "Physics", "team_members": "Joe Doe, Jane Smith, Ali Smith ", "id": "678"}

---

注意：我删除了逗号，创建了“{”索引“{}”，并创建了新行。我感谢你的帮助

如果你想这样打印，你可以像这样在列表上循环

for i in data:
    print("index {}")
    print(i)

如果希望文件中的外观与此类似，可以使用dumps参数来更改外观，但不能删除“[]”

json.dump(jsonf, [r for r in csv_reader], indent=2)# this will output to a file, you don't need a .write()