testex.py

#!/usr/bin/env python
import sys
import time

def model():
    print "model"
    try:
        while 1:
            print "loop"
            time.sleep(2)
            print "awake"

            a = []
            # Trigger exceptiom
            print a[0]
    except Exception as e:
        raise
    except KeyboardInterrupt as ke:
        print "model interrupted."
    finally:
        print "finally"
        raise KeyboardInterrupt("Interrupted")

if __name__ == '__main__':
    try:
        model()
    except KeyboardInterrupt as ke:
        pass
    finally:
        print "finally outer block"
        sys.exit(0)