The "Cogs" cog does not support loading of extensions which are packages instead of modules

[MarkKoz]

What "packages instead of modules" means is that the extension is an __init__.py of a sub-package i.e. the setup() function is in __init__.py (this is what watchchannels is doing right now).

The culprit is this code

bot/bot/cogs/cogs.py

Line 28 in 341fb52

if filename.endswith(".py") and "_" not in filename:

It's just an overcomplicated and inaccurate way to accomplish this, especially since the Bot.extensions attribute exists (perhaps it didn't when this code was written).

[MarkKoz]

Also the entire cog is a misnomer since it's really loading extensions and expects names of extensions, not cogs.

[SebastiaanZ]

You can still load/unload/reload the extension by providing the full Python path: !cogs reload bot.cogs.watchchannels, but this is a hassle. Some of our files also have _ in them, so they need to be reloaded with the complete import path as well. Not exactly great usability.