TypeError: Object of type TextIOWrapper is not JSON serializable

Question

如果代码能够正常工作，那么每当有人在聊天中输入内容时，他们就会获得 5 经验，并且该信息会被放入 .json 文件中，但相反，每当有人在聊天中输入内容时，就会发生这种情况它给了我这个错误。

on_message users = json.dumps(f) 
TypeError: Object of type TextIOWrapper is not JSON serializable

这是我正在使用的代码：

import discord
from discord.ext import commands
from discord.ext.commands import Bot
import asyncio
import json
from json import dumps, loads, JSONEncoder, JSONDecoder
import os

client = commands.Bot(command_prefix='^')
os.chdir(r'C:\Users\quiny\Desktop\sauce')

@client.event
async def on_ready():
    print ("Ready when you are xd")
    print ("I am running on " + client.user.name)
    print ("With the ID: " + client.user.id)

@client.event
async def on_member_join(member):
    with open('users.json', 'r') as f: 
        users = json.dumps(f)

    await update_data(users, member)

    with open('users.json', 'w') as f:
        json.loads("users, f")

@client.event
async def on_message(message):
    with open('users.json', 'r') as f:
        users = json.dumps(f)

    await update_data(users, message.author)
    await add_experience(users, message.author, 5)
    await level_up(users, message.author, message.channel)

    with open('users.json', 'w') as f:
        json.loads("users, f")

async def update_data(users, user):
    if not user.id in users:
        users[user.id] = {}
        users[user.id]['experience'] = 0
        users[user.id]['level'] = 1

async def add_experience(users, user, exp):
    users[user.id]['experience'] += exp

async def level_up(users, user, channel):
    experience = users[user.id]['experience']
    lvl_start = users[user.id]['level']
    lvl_end = int(experience ** (1/4))

    if lvl_start < lvl_end:
        await client.send_message(channel, '{} has achieved a slightly higher 
level of {}, yay'.format(user.mention, lvl_end))
        users[user.id]['level'] = lvl_end

Answer 1

您使用的是 loads and dumps backwards, and you should be using load and dump（s 后缀表示这些函数适用于字符串。）。 load 从一个文件，dump 到一个文件

users = {}

@client.event
async def on_message(message):
    # No need to load the dictionary, our copy is the most correct
    await update_data(users, message.author)
    await add_experience(users, message.author, 5)
    await level_up(users, message.author, message.channel)
    with open('users.json', 'w') as f:
        json.dump(users, f)

@client.event
async def on_ready():
    print ("Ready when you are xd")
    print ("I am running on " + client.user.name)
    print ("With the ID: " + client.user.id)
    # Load the json just once, when the bot starts
    global users
    with open('users.json') as f:
        try:
            users = json.load(f)
        except:
            users = {}

Answer 2

我遇到了这个错误，我使用了 json.dump 错误的方法：

正确方法：

with open("Jello.json", "w") as json_file:
    json.dump(object_to_be_saved, json_file)

错误的方式：

我用另一种方式做到了 json.dump(json_file, object_to_be_saved)...谢谢 Python.