Discord Python：向成员添加角色

Question

My bot checks whenever a user is added to a guild on Discord and then privately DMs them for their email address. It then sends a one-time code to the email address and asks the user to enter the code in the DM. All this is implemented and works. However, when the user answers with the code, I cannot seems to be able to assign a new role to the user. Here is what I currently have (I removed the code that checks the one-time code, etc. as it works and does not seem to be the source of the problem):

import discord
from discord.ext import commands
from discord.utils import get

@client.event
async def on_message(message):
    # Check if message was sent by the bot
    if message.author == client.user:
        return

    # Check if the message was a DM
    if message.channel.type != discord.ChannelType.private:
        return

    user_code = 'some code sent via email'

    if message.content == user_code:
        member = message.author

        new_guild = client.get_guild(int(GUILD_ID))
        role = get(new_guild.roles, id=DISCORD_ROLE)
        await member.add_roles(role)

        response = "You can now use the Discord Server."
        await message.channel.send(response)

Here is the error I receive:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/discord/client.py", line 312, in _run_event
    await coro(*args, **kwargs)
  File "main.py", line 89, in on_message
    await member.add_roles(role)
AttributeError: 'User' object has no attribute 'add_roles'

Answer 1

For that, you need to transform the User object into a Member object. That way, you can call the add_roles method. Here is one way of doing it:

import discord
from discord.ext import commands
from discord.utils import get

@client.event
async def on_message(message):
    # Check if message was sent by the bot
    if message.author == client.user:
        return

    # Check if the message was a DM
    if message.channel.type != discord.ChannelType.private:
        return

    user_code = "some code sent via email"

    if message.content == user_code:
        new_guild = client.get_guild(int(GUILD_ID))

        member = new_guild.get_member(message.author.id)
        role = new_guild.get_role(int(DISCORD_ROLE))
        await member.add_roles(role)

        response = "You can now use the Discord Server."
        await message.channel.send(response)