fixing Python 3.9 compat

settings.json.example

@@ -14,6 +14,7 @@
     "pg_port": "5432",
     "redis_host": "localhost",
      "ignored": [],
+    "max_discord_additional_await_time": 120,
     "irc_servers": {
         "your custom name for the farm": {
             "domains": ["wikipedia.org", "otherwikipedia.org"],

src/exceptions.py

@@ -1,3 +1,6 @@
+from typing import Union
+
+
 class WikiError(Exception):
 	pass
 
@@ -71,6 +74,6 @@ class WikiExists(Exception):
 
 
 class ExhaustedDiscordBucket(BaseException):
-	def __init__(self, remaining: int | float, is_global: bool):
+	def __init__(self, remaining: Union[int, float], is_global: bool):
 		self.remaining = remaining
 		self.is_global = is_global