How can make my Python Discord bot I check if a message was sent by the bot itself?

Question

I am writing a Discord bot using Python (v. 3.6.1) which detects all messages sent in a channel and replies to them in that same channel. However, the bot replies to messages by itself, causing an infinite loop.

@bot.event
async def on_message(message)
    await bot.send_message(message.channel, message.content)```

How would I fix this?

Answer 1

The message class contains information on the message's author, which you can utilize to determine whether or not to respond to the message. author is a Member object (or its superclass User if the channel is private), which has an id property but also supports direct logical comparisons between users.

For example:

@bot.event
async def on_message(message):
    if message.author != bot.user:
        await bot.send_message(message.channel, message.content)

Should function as desired

Answer 2

I know this question is from years ago but incase anybody else is googling this question like me, the message object that is passed to on_message has an author object inside of it, which has an attribute named "bot" which is true or false (true if it is a bot). So you can configure your function to safely ignore any messages by other bots by including this if statement at the beginning:

def on_message(self, message):
    if (message.author.bot):
        return #if this is true: then it is by a bot.