如何将多个 json 文件合并到一个 json 文件 dor EDA 在 python 中？

Question

我正在处理2个混合json文件和收集的音频（大约400个json文件）的文件夹，如下所示：{  "id":"c79c32e7-6665-4c5e-9458-d15930488263",  "age":"34",  "gender":"m",  "healthStatus":"healthy",  "audioFiles":[    "1585940317337_sentence_healthy_m_34_c79c32e7-6665-4c5e-9458d15930488263.wav",    "1585940317337_cough_healthy_m_34_c79c32e7-6665-4c5e-9458-d15930488263.wav",    "1585940317337_breath_healthy_m_34_c79c32e7-6665-4c5e-9458d15930488263.wav"  ]}我想检索 ，并将它们合并到一个JSON文件中，以便在python中进行分析。agegenderhealthStatus为此，我写道：from pathlib import Pathimport jsondata_folder = Path("/Users/jiani/Desktop/Voicemed/#ml/cough_classification-original_experiment/new_data/meta1")read_files = glob.glob("data_folder/.json")output_list = []for f in read_files:    with open(f, "rb") as infile:        output_list.append(json.load(infile))with open("merged_file.json", "w") as outfile:    json.dump(output_list, outfile)然后我打印了，但我得到了一个空的。我已经阅读了一些相关的解决方案，但我仍然无法得到答案。有人可以帮助我吗？output_list

Answer 1

试试这个：

from os import listdir

from os.path import isfile, join

import json

data_folder = "full/path/to/jsons"

files = [join(data_folder,f) for f in listdir(data_folder) if isfile(join(data_folder, f)) and f.endswith(".json")]

output_list = []

for file in files:

    with open(file, "r") as f:

        output_list.append({k:v for k,v in json.load(f).items() if k in ["age","gender","healthStatus"]})

with open("merged_file.json", "w") as outfile:

    json.dump(output_list, outfile)