PCAP Comprehensions and Iterators 2

Question 1

What does the `zip()` function do?

Accepted Answer

Combines multiple iterables element-by-element into tuples

Answer

`zip()` pairs elements from multiple iterables into tuples, stopping at the shortest iterable.

Question 2

What is the `__iter__` method required for?

Accepted Answer

Making an object iterable

Answer

The `__iter__` method makes an object iterable by returning an iterator object.

Question 3

What does `__next__` return when the iterator is exhausted?

Accepted Answer

Raises StopIteration

Answer

When an iterator has no more items, `__next__` raises `StopIteration` to signal completion.

Question 4

What does `sorted()` return?

Accepted Answer

A new sorted list

Answer

`sorted()` returns a new sorted list without modifying the original iterable.

Question 5

Which built-in function returns the sum of all elements in an iterable?

Accepted Answer

sum()

Answer

`sum(iterable)` returns the total of all numeric elements in the iterable.

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