Updated asyncio scheduler example to use asyncio.run()

examples/schedulers/asyncio_.py

@@ -4,28 +4,28 @@
 """
 
 from datetime import datetime
+import asyncio
 import os
 
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 
-try:
-    import asyncio
-except ImportError:
-    import trollius as asyncio
-
 
 def tick():
     print('Tick! The time is: %s' % datetime.now())
 
 
-if __name__ == '__main__':
+async def main():
     scheduler = AsyncIOScheduler()
     scheduler.add_job(tick, 'interval', seconds=3)
     scheduler.start()
     print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C'))
+    while True:
+        await asyncio.sleep(1000)
 
+
+if __name__ == '__main__':
     # Execution will block here until Ctrl+C (Ctrl+Break on Windows) is pressed.
     try:
-        asyncio.get_event_loop().run_forever()
+        asyncio.run(main())
     except (KeyboardInterrupt, SystemExit):
         pass