Python 词典(Dict) 加载与保存

Dict的加载：

import json

def load_dict(filename):
    '''load dict from json file'''
    with open(filename,"r") as json_file:
	    dic = json.load(json_file)
    return dic

Dict的保存：

import json
import datetime
import numpy as np

class JsonEncoder(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()
        elif isinstance(obj, datetime):                                 
            return obj.__str__()
        else:
            return super(JsonEncoder, self).default(obj)

def save_dict(filename, dic):
    '''save dict into json file'''
    with open(filename,'w') as json_file:
        json.dump(dic, json_file, ensure_ascii=False, cls=JsonEncoder)