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MIT 6.00 Intro Computer Science (OCW)
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OpenStudy (anonymous):
HI, In problem 7 I get the message: " File "C:\Users\wilkenfe\Desktop\limudim\python\Unit2\le7\ps7\ps7.py", line 154, in update if not virus.doesClear(): AttributeError: 'NoneType' object has no attribute 'doesClear'". What does it mean?
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OpenStudy (rsmith6559):
virus isn't an object, so it can't have a doesClear method.
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