From 054c9c71097389b92d9f0e9545ad3997a98d530d Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Wed, 13 Apr 2016 14:25:45 -0400
Subject: [PATCH] [commands] CommandError derived exceptions in checks don't
crash help.
---
discord/ext/commands/formatter.py | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/discord/ext/commands/formatter.py b/discord/ext/commands/formatter.py
index 5240ffd27..2339a90f2 100644
--- a/discord/ext/commands/formatter.py
+++ b/discord/ext/commands/formatter.py
@@ -28,6 +28,7 @@ import itertools
import inspect
from .core import GroupMixin, Command
+from .errors import CommandError
# help -> shows info of bot on top/bottom and lists subcommands
# help command -> shows detailed info of command
@@ -193,7 +194,10 @@ class HelpFormatter:
# care about them, so just return true.
return True
- return cmd.can_run(self.context)
+ try:
+ return cmd.can_run(self.context)
+ except CommandError:
+ return False
iterator = self.command.commands.items() if not self.is_cog() else self.context.bot.commands.items()
return filter(predicate, iterator)