Python 3.5.2+ (default, Sep 22 2016, 12:18:14) [GCC 6.2.0 20160927] on linux Type "copyright", "credits" or "license()" for more information. >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> t = TrafficLight() >>> t.color 'red' >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() red green yellow red green yellow red green yellow red >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() red green arrow green yellow red green arrow green yellow red green arrow >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() red green arrw The sky is falling!! green arrw The sky is falling!! green arrw The sky is falling!! green arrw The sky is falling!! green arrw The sky is falling!! green arrw The sky is falling!! green arrw The sky is falling!! green arrw The sky is falling!! green arrw The sky is falling!! >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() Traceback (most recent call last): File "", line 1, in main() File "/home/brent/teaching/150/lectures/S17/traffic.py", line 73, in main print(t.current_color()) File "/home/brent/teaching/150/lectures/S17/traffic.py", line 44, in current_color for color in color_state: NameError: name 'color_state' is not defined >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() red green yellow red green yellow red green yellow red >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() red green yellow red green yellow red green yellow red >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() red green yellow red green yellow red green yellow red >>> ========= RESTART: /home/brent/teaching/150/lectures/S17/traffic.py ========= >>> main() red green arrow green yellow orange purple red green arrow green yellow >>>