Why Do My Discord Bot Commands Stop Working After Customizing on_message()?

On_Message() Interfering with Commands: A Discord API Quandary

In Discord bot development, the on_message() event handler is used to process incoming messages from users. However, overriding this event without proper care can lead to command functionality issues.

One such issue arises when attempting to call commands after implementing a custom on_message() handler. The reason behind this is that the default on_message() contains a call to the process_commands() coroutine. When a developer overrides the default event, this call is omitted, preventing commands from executing.

To resolve this issue, it is crucial to manually invoke the process_commands() coroutine at the end of the custom on_message() handler. This will ensure that incoming messages are still processed for command execution in addition to any additional logic you have implemented.

For clarity, let's modify the on_message() handler in the given code snippet:

@bot.event
async def on_message(message):
    if message.content.startswith('-debug'):
        await message.channel.send('d')

    await bot.process_commands(message)

By incorporating this change, both the debug functionality and command execution will work as intended. Remember, it is essential to consider the implications of overriding default event handlers and always ensure proper passing of control for functionality to remain intact.

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