PCEP-30-02 4.3 Python Built-In Exceptions Hierarchy PCEP-30 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which of the following operations would raise a TypeError?

   • ADividing an integer by zero.
   • BAccessing a dictionary with a missing key.
   • CConverting a string to an integer with int().
   • DAdding an integer and a string.
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2. 7expert · medium

   A developer is writing a function that accepts a parameter that can be either a string or a number. The function should catch errors when the parameter is of the wrong type, but should NOT catch errors when the value is inappropriate (e.g., a string that cannot be converted). Which except clause should be used?

   • Aexcept (TypeError, ValueError):
   • Bexcept Exception:
   • Cexcept ValueError:
   • Dexcept TypeError:
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4. 8foundation · easy

   Which of the following exceptions is a subclass of LookupError?

   • ATypeError
   • BKeyError
   • COverflowError
   • DValueError
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5. 9foundation · easy

   When is ValueError raised in Python?

   • AWhen a function receives an argument of the correct type but an inappropriate value.
   • BWhen a dictionary key is not found.
   • CWhen an operation is applied to an object of an inappropriate type.
   • DWhen a sequence index is out of range.
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6. 10foundation · easy

   What is the relationship between KeyError and LookupError?

   • AThey are unrelated exceptions.
   • BThey are both subclasses of ArithmeticError.
   • CLookupError is a subclass of KeyError.
   • DKeyError is a subclass of LookupError.
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