...

src/kr/co/swh/lecture/python/scene5/scheduler/scheduler-1.py

+import time
+from apscheduler.schedulers.background import BackgroundScheduler
+
+def tick1():
+    print("tick!!!")
+
+sched = BackgroundScheduler()
+sched.add_job(tick1, "interval", seconds=2)
+sched.start()
+
+time.sleep(100)