每日学习--JSON

问题：Object of type Tensor is not JSON serializable

    json_str = json.dumps(image_dict)
    with open('../yy/Data/weibo/image_dict.json', 'w') as json_file:
        json_file.write(json_str)

原因：json.dumps函数发现字典里面有bytes类型的数据，无法编码。
解决方法：将bytes类型的数据转化成str类型；或者用pickle
【我字典里存的图片对应的tensor用不了json.dumps转换成字符串，只能强制转换】

    # json_str = json.dumps(image_dict)
    with open('../yy/Data/weibo/image_dict.json', 'w') as json_file:
        json_file.write(str(image_dict))

补充：

json和pickle是用于序列化的两个模块,都有四个功能：
dumps、dump、loads、load

import json

test_dict = {'bigberg': [7600, {1: [['iPhone', 6300], ['Bike', 800], ['shirt', 300]]}]}
print(test_dict)
print(type(test_dict))
#dumps 将数据转换成字符串
json_str = json.dumps(test_dict)
print(json_str)
print(type(json_str))

with open("../config/record.json","w") as f:
	json.dump(new_dict,f)
    print("加载入文件完成...")

new_dict = json.loads(json_str)
print(new_dict)
print(type(new_dict))

with open("../config/record.json",'r') as load_f:
    load_dict = json.load(load_f)
    print(load_dict)
load_dict['smallberg'] = [8200,{1:[['Python',81],['shirt',300]]}]
print(load_dict)

with open("../config/record.json","w") as dump_f:
    json.dump(load_dict,dump_f)