(小ネタ) Python3 で読み出すのが一番早いデータフォーマットは?

import json
import yaml
import pickle
import time

# サンプルデータ
data = {'name': 'Copilot', 'age': 1, 'languages': ['Python', 'JavaScript', 'Bash']}
iterations = 10000

# JSONでの書き込みと読み込みの時間測定
json_write_time = 0
json_read_time = 0
for _ in range(iterations):
    start_time = time.time()
    with open('data.json', 'w') as json_file:
        json.dump(data, json_file)
    json_write_time += time.time() - start_time

    start_time = time.time()
    with open('data.json', 'r') as json_file:
        data_loaded_json = json.load(json_file)
    json_read_time += time.time() - start_time

# YAMLでの書き込みと読み込みの時間測定
yaml_write_time = 0
yaml_read_time = 0
for _ in range(iterations):
    start_time = time.time()
    with open('data.yaml', 'w') as yaml_file:
        yaml.dump(data, yaml_file)
    yaml_write_time += time.time() - start_time

    start_time = time.time()
    with open('data.yaml', 'r') as yaml_file:
        data_loaded_yaml = yaml.safe_load(yaml_file)
    yaml_read_time += time.time() - start_time

# Pickleでの書き込みと読み込みの時間測定
pickle_write_time = 0
pickle_read_time = 0
for _ in range(iterations):
    start_time = time.time()
    with open('data.pkl', 'wb') as pickle_file:
        pickle.dump(data, pickle_file)
    pickle_write_time += time.time() - start_time

    start_time = time.time()
    with open('data.pkl', 'rb') as pickle_file:
        data_loaded_pickle = pickle.load(pickle_file)
    pickle_read_time += time.time() - start_time

# 結果の出力
print(f'JSON Write Time: {json_write_time}')
print(f'JSON Read Time: {json_read_time}')
print(f'YAML Write Time: {yaml_write_time}')
print(f'YAML Read Time: {yaml_read_time}')
print(f'Pickle Write Time: {pickle_write_time}')
print(f'Pickle Read Time: {pickle_read_time}')

$ python3 ./datatime.py
JSON Write Time: 3.437263250350952
JSON Read Time: 0.4125795364379883
YAML Write Time: 4.31871771812439
YAML Read Time: 3.579468250274658
Pickle Write Time: 2.7502527236938477
Pickle Read Time: 0.21659040451049805
$ python3 ./datatime.py
JSON Write Time: 3.716987371444702
JSON Read Time: 0.42149829864501953
YAML Write Time: 4.308393239974976
YAML Read Time: 3.5967061519622803
Pickle Write Time: 2.6990926265716553
Pickle Read Time: 0.20854496955871582
$ python3 ./datatime.py
JSON Write Time: 3.2737653255462646
JSON Read Time: 0.39243149757385254
YAML Write Time: 4.3981523513793945
YAML Read Time: 3.5982000827789307
Pickle Write Time: 2.5000874996185303
Pickle Read Time: 0.24534940719604492