Removed reference as it's not necessary

Author: Taaku18

core/config.py

@@ -7,8 +7,10 @@ class ConfigManager:
     """Class that manages a cached configuration"""
 
     allowed_to_change_in_command = {
-        'activity_message', 'activity_type', 'log_channel_id', 'mention', 'disable_autoupdates', 'prefix',
-        'main_category_id', 'sent_emoji', 'blocked_emoji', 'thread_creation_response', 'twitch_url'
+        'activity_message', 'activity_type', 'log_channel_id',
+        'mention', 'disable_autoupdates', 'prefix',
+        'main_category_id', 'sent_emoji', 'blocked_emoji',
+        'thread_creation_response', 'twitch_url'
         }
 
     internal_keys = {
@@ -20,7 +22,7 @@ class ConfigManager:
         'mongo_uri', 'github_access_token', 'log_url'
         }
 
-    valid_keys = allowed_to_change_in_command.union(internal_keys).union(protected_keys)
+    valid_keys = allowed_to_change_in_command | internal_keys | protected_keys
 
     def __init__(self, bot):
         self.bot = bot
@@ -47,7 +49,8 @@ def populate_cache(self):
             pass
         finally:
             data.update(os.environ)
-            data = {k.lower(): v for k, v in data.items() if k.lower() in self.valid_keys}
+            data = {k.lower(): v for k, v in data.items()
+                    if k.lower() in self.valid_keys}
             self.cache = data
 
     async def update(self, data=None):

core/thread.py

@@ -51,6 +51,7 @@ async def close(self, *, closer, after=0, silent=False,
         """Close a thread now or after a set time in seconds"""
 
         if self.close_task is not None:
+            # restarts the after timer
             self.close_task.cancel()
 
         if after > 0:
@@ -164,7 +165,7 @@ async def reply(self, message):
             self.send(message, self.recipient, from_mod=True)
             ]
 
-        if self.close_task is not None and not self.close_task.cancelled():
+        if self.close_task is not None:
             # cancel closing if a thread message is sent.
             self.close_task.cancel()
             tasks.append(self.channel.send(
@@ -175,7 +176,7 @@ async def reply(self, message):
         await asyncio.gather(*tasks)
 
     async def send(self, message, destination=None, from_mod=False):
-        if self.close_task is not None and not self.close_task.cancelled():
+        if self.close_task is not None:
             # cancel closing if a thread message is sent.
             self.close_task.cancel()
             await self.channel.send(embed=discord.Embed(
@@ -282,7 +283,7 @@ def get_notifications(self):
         if key in config['notification_squad']:
             mentions.extend(config['notification_squad'][key])
             del config['notification_squad'][key]
-            asyncio.create_task(config.update())
+            self.bot.loop.create_task(config.update())
 
         return ' '.join(mentions)