在导入Python json包,调用json.dump/dumps函数时,可能会遇到TypeError: Object of type xxx is not JSON serializable错误,也就是无法序列化某些对象格式。
默认的编码函数很多数据类型都不能编码,自定义序列化,因此可以自己写一个Myencoder去继承json.JSONEncoder,具体如下:
class MyEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, np.integer):
return int(obj)
elif isinstance(obj, np.floating):
return float(obj)
elif isinstance(obj, np.ndarray):
return obj.tolist()
else:
return super(MyEncoder, self).default(obj)
然后在调用json.dump/dumps时,指定使用自定义序列化方法
json.dumps(data, cls=MyEncoder)
def dict_to_json(dict_obj,name, Mycls = None):
js_obj = json.dumps(dict_obj, cls = Mycls, indent=4)
with open(name, 'w') as file_obj:
file_obj.write(js_obj)
def json_to_dict(filepath, Mycls = None):
with open(filepath,'r') as js_obj:
dict_obj = json.load(js_obj, cls = Mycls)
return dict_obj
https://www.jianshu.com/p/0883d6f4bec3
https://www.jianshu.com/p/fcc1204c90c9
https://blog.csdn.net/bear_sun/article/details/79397155/
https://blog.csdn.net/gqixf/article/details/78954021
https://www.cnblogs.com/qiqi-yhq/articles/12557870.html
https://mlog.club/article/1487147