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Python Programming - Generators

Exercise : Generators - General Questions
  • Generators - General Questions
71.
How does the generator.throw() method differ from the generator.close() method?
They are equivalent in functionality
generator.throw() raises a specific exception in the generator, while generator.close() terminates the generator
generator.close() raises a StopIteration exception, while generator.throw() terminates the generator
generator.throw() raises a StopIteration exception, while generator.close() terminates the generator
Answer: Option
Explanation:
generator.throw() raises a specific exception in the generator, while generator.close() terminates the generator by raising a GeneratorExit exception.
72.
How does the itertools.count() function differ from using range()?
They are equivalent in functionality
itertools.count() generates an infinite sequence, while range() creates a finite sequence
range() generates an infinite sequence, while itertools.count() creates a finite sequence
itertools.count() raises a StopIteration exception when exhausted, while range() does not
Answer: Option
Explanation:
itertools.count() generates an infinite sequence of numbers, while range() creates a finite sequence of numbers.
73.
How does the generator.throw(GeneratorExit) method differ from generator.close()?
They are equivalent in functionality
generator.throw(GeneratorExit) raises a GeneratorExit exception in the generator, while generator.close() terminates the generator
generator.close() raises a GeneratorExit exception, while generator.throw(GeneratorExit) terminates the generator
generator.throw(GeneratorExit) and generator.close() are not valid methods
Answer: Option
Explanation:
generator.throw(GeneratorExit) raises a GeneratorExit exception in the generator, indicating that the generator should be closed. generator.close() terminates the generator without raising an exception.
74.
What is the purpose of the itertools.dropwhile() function when used with generators?
It drops the first element from the generator
It skips elements until a certain condition is false
It stops the generator after one iteration
It filters elements based on a specified condition
Answer: Option
Explanation:
itertools.dropwhile() skips elements from the generator until the specified condition becomes false, after which it yields the remaining elements.
75.
How does the generator.throw(StopIteration, value) method affect a running generator?
It stops the generator and raises a StopIteration exception with the specified value
It continues the generator's execution with the specified value
It has no effect on the running generator
It raises a ValueError with the specified value
Answer: Option
Explanation:
generator.throw(StopIteration, value) stops the generator and raises a StopIteration exception with the specified value.
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