Exercise: Decorators

Questions for: Decorators

What is the primary use case for the @contextlib.redirect_stdout decorator?
A:
Converts a method to a class method
B:
Redirects standard output to a specified file or file-like object
C:
Marks a method as a static method
D:
Decorates a method with dynamic behavior
Answer: B
The @contextlib.redirect_stdout decorator is used to redirect standard output to a specified file or file-like object within a context.
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What is the primary use case for the @contextlib.ExitStack?
A:
Converts a method to a class method
B:
Manages a stack of cleanup callbacks for managing resources
C:
Marks a method as a static method
D:
Decorates a method with dynamic behavior
Answer: B
The @contextlib.ExitStack is used for managing a stack of cleanup callbacks, making it useful for managing resources within a context.
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What is the purpose of the @functools.lru_cache decorator's maxsize parameter?
A:
The maximum number of unique arguments to be cached
B:
The maximum size of the cache in bytes
C:
The maximum number of function calls to be cached
D:
The maximum number of distinct values to be cached
Answer: C
The @functools.lru_cache decorator's maxsize parameter controls the maximum number of function calls to be cached.
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What is the primary use case for the @contextlib.suppress decorator?
A:
Converts a method to a class method
B:
Marks a method as a static method
C:
Suppresses specified exceptions within a context
D:
Decorates a method with dynamic behavior
Answer: C
The @contextlib.suppress decorator is used to suppress specified exceptions within a context, allowing the code to continue execution even if those exceptions are raised.
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What is the purpose of the @contextlib.asynccontextmanager decorator?
A:
Converts a method to a class method
B:
Enables the use of the 'with' statement for resource management in asynchronous code
C:
Marks a method as a static method
D:
Decorates a method with dynamic behavior
Answer: B
The @contextlib.asynccontextmanager decorator is used for creating asynchronous context managers, enabling the use of the 'async with' statement in asynchronous code.
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