PCPP-32-101 2.3 Employ PEP 257 Conventions and Related Standards PCPP-32-1 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A developer is writing a function that processes a list of user IDs. The team's documentation standard requires that the function's docstring include type information, but the codebase also uses type hints. The developer wants to avoid duplication and follow best practices. What should the developer do?

   • AUse type information in the docstring and omit type hints from the signature.
   • BUse both type hints and type information in the docstring.
   • CUse type hints only for parameters and docstring type information for return values.
   • DUse type hints in the function signature and omit type information from the docstring.
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2. 7foundation · easy

   Which tool is specifically designed to check that docstrings conform to PEP 257?

   • Apydocstyle
   • Bflake8
   • Cmypy
   • Dblack
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4. 8foundation · easy

   How would you annotate a variable that holds a list of strings?

   • Anames: List[str]
   • Bnames: list
   • Cnames: Dict[str]
   • Dnames: str[]
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5. 9foundation · easy

   According to PEP 257, what is the recommended format for a one-line docstring?

   • AA sentence that starts with 'This function' or 'This class'.
   • BA single sentence without a period, enclosed in single quotes.
   • CA single sentence ending with a period, enclosed in triple double quotes.
   • DA sentence followed by a blank line and a detailed description.
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6. 10foundation · easy

   Which typing construct is used to annotate a variable that can be either an integer or None?

   • AAny
   • BOptional[int]
   • CList[int]
   • DUnion[int]
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