clean up examples

Author: chenosaurus

examples/local-audio/full_duplex.py

@@ -95,7 +95,7 @@ def on_participant_disconnected(participant: rtc.RemoteParticipant):
         logging.info("published local microphone")
 
         # Start playing mixed remote audio
-        play_task = asyncio.create_task(player.play(mixer))
+        asyncio.create_task(player.play(mixer))
 
         # Run until Ctrl+C
         while True:

examples/local-audio/publish_mic.py

@@ -2,6 +2,7 @@
 import sys
 import asyncio
 import logging
+from dotenv import load_dotenv, find_dotenv
 
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", "livekit-rtc")))
 
@@ -11,6 +12,9 @@
 async def main() -> None:
     logging.basicConfig(level=logging.INFO)
 
+    # Load environment variables from a .env file if present
+    load_dotenv(find_dotenv())
+
     url = os.getenv("LIVEKIT_URL")
     token = os.getenv("LIVEKIT_TOKEN")
     if not url or not token: