diff options
| -rw-r--r-- | discord/ext/commands/cog.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/discord/ext/commands/cog.py b/discord/ext/commands/cog.py index 217f6388..a51173b9 100644 --- a/discord/ext/commands/cog.py +++ b/discord/ext/commands/cog.py @@ -203,9 +203,13 @@ class Cog(metaclass=CogMeta): Raises -------- TypeError - The function is not a coroutine function. + The function is not a coroutine function or a string was not passed as + the name. """ + if name is not None and not isinstance(name, str): + raise TypeError('Cog.listener expected str but received {0.__class__.__name__!r} instead.'.format(name)) + def decorator(func): if not inspect.iscoroutinefunction(func): raise TypeError('Listener function must be a coroutine function.') |