Python Operators and Expressions 5

Question 1

What is the result of `10 % 3` in Python?

Accepted Answer

1

Answer

The modulo operator `%` returns the remainder of division; `10 ÷ 3 = 3` remainder `1`.

Question 2

What does `x = []; x or 'default'` return?

Accepted Answer

'default'

Answer

An empty list is falsy in Python, so `[] or 'default'` returns `'default'` because the `or` operator returns the first truthy value.

Question 3

Which of the following is a valid augmented assignment operator in Python?

Accepted Answer

//=

Answer

`//=` is valid and performs in-place floor division; the others are not valid Python operators.

Question 4

What is the result of `'5' + 5` in Python?

Accepted Answer

Raises a TypeError

Answer

Python does not support implicit type coercion between strings and integers; attempting `'5' + 5` raises a `TypeError`.

Question 5

What does the expression `any([False, 0, '', None, 1])` return?

Accepted Answer

True

Answer

`any()` returns `True` if at least one element is truthy; since `1` is truthy, the result is `True`.

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