Type check root aliases

Just like normal aliases, they should only be tuples or lists. This is
likely done by discord.py to prevent accidentally passing a string when
only a single alias is desired.

1 files changed, 3 insertions, 0 deletions

diff --git a/bot/command.py b/bot/command.py
index 92e61d97e..0fb900f7b 100644
--- a/bot/command.py
+++ b/bot/command.py
@@ -13,3 +13,6 @@ class Command(commands.Command):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.root_aliases = kwargs.get("root_aliases", [])
+
+        if not isinstance(self.root_aliases, (list, tuple)):
+            raise TypeError("Root aliases of a command must be a list or a tuple of strings.")