PCPP-32-101 2.3 Employ PEP 257 Conventions and Related Standards PCPP-32-1 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A developer has written a module with several functions. The module passes `pycodestyle` but fails `pydocstyle` because some functions are missing docstrings and others have docstrings that are not properly formatted. The developer wants to automatically fix the formatting issues without manually rewriting every docstring. Which tool should the developer use?

   • Ablack
   • Bpydocstyle
   • Cdocformatter
   • Dautopep8
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2. 12foundation · easy

   What is the primary difference between a comment and a docstring in Python?

   • AComments are discarded by the parser, while docstrings are stored as string literals accessible at runtime.
   • BComments are executed by the interpreter, while docstrings are ignored.
   • CComments are accessible at runtime, while docstrings are only visible in source code.
   • DComments are stored as string literals, while docstrings are not stored.
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4. 13foundation · easy

   What is a key advantage of using type annotations over documenting types in docstrings?

   • AAnnotations can be used by static type checkers like mypy.
   • BAnnotations are checked at runtime by the interpreter.
   • CAnnotations automatically generate documentation.
   • DAnnotations improve runtime performance.
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5. 14foundation · easy

   Which statement best describes a primary reason to include docstrings in Python code?

   • AThey are required by the Python compiler to validate the syntax of the code.
   • BThey make the code accessible to automated documentation tools and the built-in help() function.
   • CThey allow the Python interpreter to optimize the execution speed of the documented code.
   • DThey replace the need for separate documentation files in all Python projects.
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6. 15foundation · easy

   How does a docstring support introspection in Python?

   • AIt is accessible as the __doc__ attribute of the object, allowing runtime inspection of its purpose.
   • BIt is stored in a separate metadata file that the interpreter loads on demand.
   • CIt is compiled into bytecode that the interpreter can inspect at runtime.
   • DIt is automatically printed whenever the object is called.
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