Discord script to nuke bot spam

bot.py

# bot.py
'''
> Instructions
0) Configure the script constants (TOKEN, GUILD_ID, BOT_CHANNEL_ID_LIST, BOT_ID)
1) Download and install python: https://www.python.org/downloads/
2) Open command prompt, navigate to this script folder.
3) Install discord.py with the following command: pip install discord
4) Run the script with the command: python bot.py
'''
import discord

TOKEN = 'DISCORD_TOKEN'

GUILD_ID = 123
BOT_CHANNEL_ID_LIST = [ 1234 ]
BOT_ID = 1234

client = discord.Client()

def is_not_bot_channel(c):
    channel_id = c.id
    return not any(map(lambda id: id == channel_id, BOT_CHANNEL_ID_LIST))

def is_bot_spam(m):
    return m.author.id == BOT_ID

@client.event
async def on_ready(self):
    print(f'Logged in as {self.user} (ID: {self.user.id})')
    print('------')

    # Get the guild
    guild = client.get_guild(GUILD_ID)
    print(
        f'{client.user} is connected to the following guild:\n'
        f'{guild.name}(id: {guild.id})'
    )

    # Get the list on non-bot channels
    channels = filter(is_not_bot_channel, guild.text_channels)      
    print(f'{client.user} is connected to the following channels:')
    for channel in channels:
        print(f'{channel.name}(id: {channel.id})')

    # Purge each channel
    for channel in channels:
        deleted = await channel.purge(limit=None, check=is_bot_spam)
        print(f'deleted {len(deleted)} bot spam message(s) from channel {channel.name})')


client.run(TOKEN)