Improved type-hinting and overall sanity checks implemented.

main.py

@@ -1,4 +1,6 @@
 import logging
+import sys
+from logging import Logger
 
 from discord import Activity, ActivityType
 from libbot import config_get
@@ -13,7 +15,7 @@ logging.basicConfig(
     datefmt="[%X]",
 )
 
-logger = logging.getLogger(__name__)
+logger: Logger = logging.getLogger(__name__)
 
 try:
     import uvloop  # type: ignore
@@ -24,11 +26,11 @@ except ImportError:
 
 
 @client.event
-async def on_ready():
+async def on_ready() -> None:
     logger.info("Logged in as %s", client.user)
 
-    activity_type = await config_get("type", "status")
-    activity_message = await config_get("message", "status")
+    activity_type: str = await config_get("type", "status")
+    activity_message: str = await config_get("message", "status")
 
     if activity_type == "playing":
         await client.change_presence(
@@ -62,7 +64,7 @@ async def on_ready():
     )
 
 
-def main():
+def main() -> None:
     client.load_extension("cogs")
 
     try:
@@ -70,7 +72,7 @@ def main():
         client.run(sync_config_get("bot_token", "bot"))
     except KeyboardInterrupt:
         scheduler.shutdown()
-        exit()
+        sys.exit()
 
 
 if __name__ == "__main__":