Python converts json to csv and the problem of blank lines appears

1. Question:

When I used json to csv, I found that there was a blank line in the middle of each row of data, so I found the reason here.

The data involved has been blurred. Look at the blank line in the middle of the data on the left:

Solution:

When saving as csv, add one newline=''to solve this problem, for example:with open('./data_csv.csv','w',encoding='utf-8',newline='')

The complete code below:

import json
import csv


def json_to_csv():
    '''json转csv'''
    with open('./data.json','r',encoding='utf-8') as file:
        cont1 = json.load(file)
        print(type(cont1[0]))
        keys = cont1[0].keys()
        values = [i.values() for i in cont1]

    print("values",values)
    # 会出现空行
    # with open('./data_csv.csv','w',encoding='utf-8') as file1:
    # 不出现空行
    with open('./data_csv.csv','w',encoding='utf-8',newline='') as file1:
        csv_wrie = csv.writer(file1)
        csv_wrie.writerow(keys)
        csv_wrie.writerows(values)

    print('ok')

if __name__ == '__main__':
    json_to_csv()

Schematic diagram of the effect: there are no blank lines on the left. At this time, if you use excel to import csv, there will be no blank lines.