commands.has_permissions() return True in DM channels (fix #1576) (#1577)

Co-authored-by: Lala Sabathil <[email protected]>
Co-authored-by: BobDotCom <[email protected]>

Author: 3 people

discord/ext/commands/core.py

@@ -2116,8 +2116,9 @@ async def test(ctx):
         raise TypeError(f"Invalid permission(s): {', '.join(invalid)}")
 
     def predicate(ctx: Context) -> bool:
-        ch = ctx.channel
-        permissions = ch.permissions_for(ctx.author)  # type: ignore
+        if ctx.channel.type == ChannelType.private:
+            return True
+        permissions = ctx.channel.permissions_for(ctx.author)  # type: ignore
 
         missing = [perm for perm, value in perms.items() if getattr(permissions, perm) != value]